EXHIBIT 4.3

                       CONVERTIBLE SUBORDINATED DEBENTURE

$4,000,000                                                     November 10, 2000
                                                          Minneapolis, Minnesota

     Select Comfort Corporation,  a Minnesota  corporation (the "COMPANY"),  for
value  received,  hereby promises to pay to St. Paul Venture Capital V, LLC (the
"HOLDER"),  at the Holder's  office,  the principal sum of Four Million  Dollars
($4,000,000),  on November 10, 2005 (the "MATURITY DATE").  This Debenture shall
not bear interest from the date of issuance through to the Maturity Date.

     This  Debenture  is  issued  pursuant  to the terms of that  certain  Asset
Purchase  Agreement  dated as of November  10,  2000,  by and among the Company,
SleepTec, Inc., and St. Paul Venture Capital IV, LLC/St. Paul Venture Capital V,
LLC/St. Paul Venture Capital VI, LLC (the "PURCHASE AGREEMENT").  This Debenture
is subject  to the terms and  conditions  of the  Purchase  Agreement,  which is
hereby incorporated herein by reference.

     This Debenture is subject to the following terms and conditions:

1. DEFINITIONS

     As used in this Debenture,  the following terms, where used with an initial
capital letter, have the following meanings:

     1.1. COMPANY. The "Company" means Select Comfort  Corporation,  a Minnesota
     corporation, and will also include its successors and assigns.

     1.2.  CORRESPONDING  INDEBTEDNESS.  "Corresponding  Indebtedness" means any
     other  subordinated  indebtedness of the Company that by its terms ranks on
     parity with this Debenture.

     1.3.  THE  HOLDER.  "The  Holder"  means  the  registered  holder  of  this
     Debenture,  or any person to whom this Debenture is  subsequently  properly
     transferred and who becomes a registered holder of this Debenture.

     1.4.  PURCHASE MONEY  INDEBTEDNESS.  "Purchase  Money  Indebtedness"  means
     indebtedness  evidenced  by  a  note,  debenture,  bond  or  other  written
     instrument  (whether or not secured by any lien or other security interest)
     issued or assumed as all or a part of the consideration for the acquisition
     of property, whether by purchase, merger, consolidation or otherwise.

     1.5.  SENIOR  DEBT.  "Senior  Debt" means (a) the  principal  of and unpaid
     interest on indebtedness  (other than this Debenture and any  Corresponding
     Indebtedness)  of the  Company,  or with  respect to which the Company is a
     guarantor,  (i) for money borrowed evidenced by bonds, notes, debentures or
     similar   written   obligations   or  (ii)   constituting   Purchase  Money
     Indebtedness  or indebtedness  secured by property  acquired by the Company
     subject  to such  indebtedness  and for which the  Company is  directly  or



     contingently  liable,  whether outstanding on the date of this Debenture or
     subsequently  created,  assumed  or  incurred,  unless  by the terms of the
     instrument creating or evidencing the indebtedness it is provided that such
     indebtedness is Corresponding  Indebtedness or is otherwise not superior in
     right  of  payment  to this  Debenture;  and (b)  any  other  indebtedness,
     liability or  obligation,  contingent or otherwise,  of the Company or with
     respect to which the Company is a guarantor,  which is created,  assumed or
     incurred after the date of this Debenture and which, when created,  assumed
     or incurred,  is specifically  designated by the Company as Senior Debt for
     the purpose of this Debenture in the instrument creating or evidencing such
     indebtedness,  liability or obligation,  or guaranty  thereof;  and (c) any
     refundings,  renewals  or  extensions  of any  indebtedness,  liability  or
     obligation  described in clauses (a) and (b) above.  The term "Senior Debt"
     does not include any short-term account payable (payable within ninety (90)
     days or less of its  creation)  created or  assumed  by the  Company in the
     ordinary  course  of its  business  in  connection  with the  obtaining  of
     materials or services.

2. SUBORDINATION

     2.1.   GENERALLY.   Payment  of  the  principal  of  and  interest  on  the
     indebtedness  evidenced by this Debenture will be subordinate,  and subject
     in right of payment, to the extent and in the manner stated in this Section
     2, to the prior payment in full of all Senior Debt.  The provisions of this
     Section 2 are  intended  solely for the  purpose of defining  the  relative
     rights of the  Holder,  the  holders  of  Senior  Debt and the  holders  of
     Corresponding Indebtedness.

     2.2.  LIQUIDATION.  Upon any full or partial payment or distribution of the
     assets of the Company upon any dissolution,  winding up, total  liquidation
     or  reorganization  of the  Company  (whether  in  bankruptcy,  insolvency,
     reorganization  or  receivership  proceedings,  upon an assignment  for the
     benefit  of  creditors  or upon any other  marshalling  of the  assets  and
     liabilities of the Company):

          2.2.1 All Senior Debt (including interest accruing on such Senior Debt
          after the date of filing of a petition or other action  commencing any
          such  proceeding) will first be paid in full before the Holder will be
          entitled to receive any payment or  distribution of any character from
          or by the Company,  whether in cash,  securities or other property, on
          account of the principal of or interest on the indebtedness  evidenced
          by this Debenture;

          2.2.2 Any  payment  or  distribution  of assets of the  Company of any
          character,  whether in cash,  securities or other property, on account
          of the principal of or interest on the indebtedness  evidenced by this
          Debenture,  which  would,  except  for this  Section  2, be payable or
          deliverable  in respect of this  Debenture,  will be paid or delivered
          directly to the holders of the Senior Debt in the proportions in which
          they hold the same, until the Senior Debt is paid in full; and

          2.2.3 In the event that, despite the foregoing provisions, any payment
          or distribution of assets of the Company of any character,  whether in
          cash,  securities or other property (other than shares of Common Stock
          issued upon  conversion of this  Debenture in accordance  with Section
          4.2 hereof), is received by the Holder


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          before all Senior Debt is paid in full,  such payment or  distribution
          will be held in trust  for the  benefit  of,  and will be paid over or
          delivered  to, the holders of such Senior Debt in the  proportions  in
          which they hold the same, until the Senior Debt is paid in full.

     2.3.  DEFAULT ON SENIOR DEBT. In the event and during the  continuation  of
     any default in respect of any Senior  Debt,  or under any  agreement  under
     which any Senior Debt was issued, continuing beyond the period of grace, if
     any,  specified  in such  agreement,  then unless and until such default is
     cured or waived or has  ceased to exist,  no  payment  or  distribution  of
     assets of the Company of any character,  whether cash,  securities or other
     property,  will be paid or delivered  with  respect to the  principal of or
     interest on this Debenture.

     2.4.  DEFAULT ON  DEBENTURE.  In the event  that,  pursuant to the terms of
     Section 6 hereof,  this Debenture shall be declared due and payable because
     of an Event of Default, no payments shall be made to the Holder, on account
     of  principal  or  interest  or  otherwise,  while any Senior Debt shall be
     outstanding;  provided, however, that if, within thirty (30) days after the
     holders of all such Senior Debt have received  written notice of such Event
     of  Default,  the  maturity  of none of the  Senior  Debt  shall  have been
     accelerated by such holders, the restriction  contained in this Section 2.4
     with respect to payments to the Holder shall  terminate and be no longer in
     effect.  The Company agrees, for the benefit of the holders of Senior Debt,
     that in the event that this  Debenture  shall be  declared  due and payable
     because of an Event of Default  hereunder,  it will  promptly  give written
     notice  thereof to the  holder or  holders of all Senior  Debt or to its or
     their representative or representatives.

     2.5.  NONIMPAIRMENT.  Nothing contained in this Debenture is intended to or
     will (a) impair, as between the Company,  its creditors and the Holder, the
     obligation of the Company,  which is absolute and unconditional,  to pay to
     the Holder the principal of and interest on this Debenture, as and when the
     same becomes due and payable in  accordance  with its terms,  or (b) affect
     the relative  rights of the Holder and other creditors of the Company other
     than the holders of Senior Debt.  Nothing  contained in this Debenture will
     prevent the Holder from  exercising  all  remedies  otherwise  permitted by
     applicable  law upon any  default  under  this  Debenture,  subject  to the
     rights,  if any, under this Section 2, of the holders of the Senior Debt in
     respect of cash,  securities or other property of the Company received upon
     exercise of any such remedy.

     2.6.  CONTINUING  RIGHTS OF SENIOR DEBT.  No right of any present or future
     holder of the Senior  Debt to enforce  subordination  as  provided  in this
     Section 2 will at any time in any way be  prejudiced or impaired by any act
     or  failure  to  act,  in  good  faith,  by  any  such  holder,  or by  any
     noncompliance  by the Company with the terms,  provisions  and covenants of
     this Debenture,  regardless of any knowledge  thereof which any such holder
     may have or may be charged with having.

     2.7.  EXECUTION OF SUBORDINATION  AGREEMENTS.  The Holder of this Debenture
     agrees to execute  and deliver to the holder or holders of Senior Debt such
     subordination  agreements as may be  reasonably  requested by the holder or
     holders  of  Senior  Debt  and as may be  consistent  with  the  terms  and
     conditions set forth in this Section 2.



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3. NO PREPAYMENT

     This Debenture may not be prepaid in whole or in part at any time.

4. CONVERSION

     4.1.  CONVERSION  PRICE.  This Debenture is convertible  into shares of the
     Company's  common stock,  par value $0.01 per share (the "Common Stock") at
     an  initial  conversion  price  equal to $5.50 per share  (the  "CONVERSION
     PRICE").  The Conversion Price is subject to adjustment pursuant to Section
     4.5 below.

     4.2.  OPTIONAL  CONVERSION.  Subject to the Company  obtaining  shareholder
     approval if necessary under the applicable  Nasdaq rules,  the Holder shall
     have the right,  exercisable  at any time in  accordance  with the terms of
     this  Section 4.2, to convert all or any portion of the  principal  balance
     under this Debenture  into shares of Common Stock.  In the case of optional
     conversion by the Holder  pursuant to this Section 4.2, this Debenture must
     be surrendered and accompanied by a written  conversion  notice in the form
     attached  hereto as Exhibit A (hereinafter  referred to as the  "CONVERSION
     NOTICE")  delivered  to the Company at its  principal  office  during usual
     business hours.

     4.3. CONVERSION SHARES. The shares of Common Stock issuable upon conversion
     of this Debenture  pursuant to this Section 4 are referred to herein as the
     "CONVERSION Shares." The number of Conversion Shares shall be calculated by
     dividing the  principal  amount of the  Debenture or portion  thereof to be
     converted by the Conversion Price as adjusted from time to time as provided
     herein.

     4.4.  ISSUANCE OF COMMON STOCK.  The  conversion of this  Debenture will be
     deemed to have been made at the close of business on the date on which this
     Debenture has been  surrendered for conversion  with the Conversion  Notice
     duly executed (the  "CONVERSION  DATE").  As of the  Conversion  Date,  the
     rights  of the  Holder  as a holder of this  Debenture  will  cease and the
     Holder will be treated for all purposes as having  become the record holder
     of the Conversion  Shares as of such Conversion Date. No fractional  shares
     will be issued upon the conversion of this Debenture,  but,  instead of any
     fraction of a share that would  otherwise  be  issuable,  the Company  will
     deliver an amount of cash  equal to such  fraction  multiplied  by the then
     applicable Conversion Price.

     4.5.  ADJUSTMENT OF CONVERSION PRICE. The Conversion Price shall be subject
     to adjustment from time to time as follows:

          4.5.1 In case the Company shall  subdivide its  outstanding  shares of
          Common  Stock  into a greater  number of shares at any time,  the then
          applicable  Conversion  Price  in  effect  immediately  prior  to such
          subdivision shall be proportionately reduced, and conversely,  in case
          the  outstanding  shares  of  Common  Stock  of the  Company  shall be
          combined  into  a  smaller  number  of  shares,  the  then  applicable
          Conversion Price in effect immediately prior to such combination shall
          be proportionately increased.

          4.5.2 If any capital reorganization or reclassification of the capital
          stock of the Company,  or  consolidation or merger of the Company with
          another corporation,


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          or the  sale of all or  substantially  all of its  assets  to  another
          corporation  shall be  effected  in such a way that  holders of Common
          Stock shall be entitled to receive  stock,  securities  or assets with
          respect to or in exchange for Common  Stock,  then,  as a condition of
          such reorganization, reclassification,  consolidation, merger or sale,
          lawful and adequate  provision  shall be made whereby the Holder shall
          thereafter  have the right to  receive  upon the terms and  conditions
          specified  herein  and in lieu of the  Conversion  Shares  immediately
          theretofore  receivable  upon the conversion of this  Debenture,  such
          shares of stock, securities or assets as may be issued or payable with
          respect to or in exchange for a number of  outstanding  shares of such
          Common  Stock  equal to the  number  theretofore  receivable  upon the
          conversion    of   this    Debenture    had    such    reorganization,
          reclassification,  consolidation,  merger or sale not taken place, and
          in any such case  appropriate  provision shall be made with respect to
          the rights and interests of the Holder to the end that the  provisions
          hereof (including,  without limitation,  provisions for adjustments of
          the then applicable  Conversion  Price and of the number of securities
          receivable upon the conversion of this Debenture)  shall thereafter be
          applicable, as nearly as may be practicable, in relation to any shares
          of  stock,   securities  or  assets  thereafter  receivable  upon  the
          conversion of this Debenture.

          4.5.3 In any case in which  this  Section  4.5 shall  require  that an
          adjustment shall become effective  immediately after a record date for
          an event,  and if the Holder should convert this Debenture  after such
          record date and before the occurrence of such event,  then the Company
          may  defer  until  the  occurrence  of  such  event  (i)  issuing  the
          additional  shares of Common Stock  issuable  upon such  conversion by
          reason of the  adjustment  required  by such  event over and above the
          shares  issuable  upon such  conversion  before  giving effect to such
          adjustment and (ii) paying to the Holder any amount of cash in lieu of
          a fractional share pursuant to Section 4.4 above.

          4.5.4  All  calculations  under  this  Section  4 shall be made to the
          nearest cent or to the nearest  one-hundredth  of a share, as the case
          may be.

          4.5.5 Upon any  adjustment of the Conversion  Price,  then and in each
          such  case,  the  Company  shall  give  written  notice  thereof,   by
          first-class  mail,  postage prepaid,  addressed to the Holder,  at the
          address  of the  Holder  as shown on the books of the  Company,  which
          notice shall state the Conversion Price resulting from such adjustment
          and the  increase or  decrease,  if any,  in the number of  Conversion
          Shares  issuable  upon  conversion  of this  Debenture  at such price,
          setting forth in reasonable  detail the method of calculation  and the
          facts upon which such calculation is based.

          4.5.6 The Company shall give the Holder five (5) days' written  notice
          prior to the effective date of any of the events described in Sections
          4.5.1 or 4.5.2 above.

     4.6. ADJUSTMENT OF NUMBER OF SHARES. Upon each adjustment of the Conversion
     Price  pursuant to Section  4.5, the number of  Conversion  Shares shall be
     adjusted  by  dividing  the then  unpaid  principal  amount  hereof  by the
     applicable per share Conversion Price in effect immediately  following such
     adjustment.



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     4.7. COVENANTS OF COMPANY. The Company covenants that all of the Conversion
     Shares will,  upon issuance,  be duly  authorized  and issued,  fully paid,
     nonassessable  and free from all taxes,  liens and charges  with respect to
     the issue  thereof.  The Company  further  covenants that during the period
     within which this Debenture may be converted, the Company will at all times
     have  authorized,  and reserved  free of preemptive or other rights for the
     purpose of issue,  such number of shares of Conversion Shares as shall then
     be issuable upon conversion of this Debenture as herein provided.

     4.8. NO REGISTRATION. The Holder understands that neither the Debenture nor
     the  Conversion  Shares have been  registered  under the Act, or applicable
     securities  laws, and the Debenture is (and the Conversion  Shares will be)
     issued pursuant to exemptions from registration under the Act and the state
     securities  laws.  The  Holder  acknowledges  that the  Debenture,  and the
     Conversion Shares if issued,  must be held  indefinitely  unless exemptions
     from such  registration  are  available.  The Holder  understands  that the
     Debenture may not be sold or transferred  by the Holder except  pursuant to
     an  effective  registration  statement  under  the Act  and any  applicable
     securities  laws,  or an opinion of counsel  acceptable to the Company that
     such registration is not required.  The Company agrees (for any Holder that
     is a party to,  or  affiliated  with any  person  that is a party  to,  the
     Amended and Restated  Registration Rights Agreement executed by the Company
     as of December 28, 1995 (the "Registration Rights  Agreement")),  to extend
     registration  rights for the  Conversion  Shares that are equivalent to the
     registration rights granted under the Registration Rights Agreement.

5. CONSOLIDATION, MERGER, SALE OR CONVEYANCE

     5.1.  GENERALLY.  Nothing  contained  in this  Debenture  will  prevent any
     consolidation  or merger of the Company with or into any other  corporation
     or  corporations  or  successive  consolidations  or  mergers  in which the
     Company or its  successor  or  successors  is a party or  parties,  or will
     prevent  any  sale or  conveyance  of the  property  of the  Company  as an
     entirety  or  substantially  as  an  entirety  to  any  other   corporation
     authorized  to acquire and operate the same.  However,  the Company  hereby
     covenants  and  agrees  that  any  such  consolidation,   merger,  sale  or
     conveyance  will be upon the  condition  that (a)  immediately  after  such
     consolidation,  merger,  sale or conveyance  the  corporation  (whether the
     Company  or  such  other  corporation)  formed  by or  surviving  any  such
     consolidation or merger, or to which such sale or conveyance will have been
     made, will not be in default in the performance or observance of any of the
     terms,  covenants and  conditions of this Debenture to be kept or performed
     by the Company;  and (b) the corporation (whether the Company or such other
     corporation) formed by or surviving any such consolidation or merger, or to
     which such sale or conveyance  will have been made,  will expressly  assume
     the due and punctual payment of the principal of this Debenture,  according
     to the terms of this Debenture, and the faithful performance and observance
     of all of the covenants,  conditions, and requirements of this Debenture to
     be  performed  by the Company by a  supplemental  instrument  executed  and
     delivered to the Holder by such corporation.

     5.2.  RELEASE;  LIABILITY  OF  SUCCESSOR  CORPORATION.  In case of any such
     consolidation,  merger, sale or conveyance,  and upon the assumption by any
     successor  corporation  pursuant  to  Section  5.1  above,  such  successor
     corporation  will succeed to and be substituted  for the Company,  with the
     same effect as if it had been named in this


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     Debenture  in  the  Company's  place,   and  the  Company   (including  any
     intervening  successor to the Company which has become obligated under this
     Debenture) will be relieved of any further obligation under this Debenture.
     All of the covenants,  stipulations,  promises, and agreements contained in
     this  Debenture by or on behalf of the Company will bind its successors and
     assigns, whether so expressed or not.

6. DEFAULT

     6.1. EVENTS OF DEFAULT.  An "EVENT OF DEFAULT" will be deemed to occur upon
     the happening of any of the following:  (a) the failure to pay when due any
     amount of principal payable  hereunder,  (b) the filing against the Company
     which  is not  dismissed  within  sixty  (60)  days  thereafter,  or by the
     Company,   of  a  petition  in   bankruptcy  or  for  an   arrangement   or
     reorganization,  (c) the making by the Company of a general  assignment for
     the benefit of creditors,  (d) the appointment of a receiver or trustee for
     the  Company,   (e)  the  institution  of  liquidation  or  dissolution  or
     reorganization  proceedings with respect to the Company, or (f) the Company
     becoming  unable or  admitting  in  writing an  inability  to pay its debts
     generally as they become due.

     6.2.  RIGHTS ON DEFAULT.  If an Event of Default  occurs and is continuing,
     the Holder may declare the principal of this  Debenture,  together with any
     accrued  and unpaid  interest,  if not  already  due, to be due and payable
     immediately,  by written notice to the Company; provided, however, that all
     amounts due under this Debenture  shall be  automatically  due and payable,
     without  any action of the  Holder,  upon an Event of Default  pursuant  to
     Sections 6.1(b) - 6.1(f) above. Upon any such  declaration,  such principal
     and interest will become due and payable immediately, anything contained in
     this Debenture to the contrary notwithstanding.

     6.3.  ENFORCEMENT.  If the principal of this  Debenture,  together with all
     accrued  and unpaid  interest  on this  Debenture,  becomes due and payable
     immediately,  whether by  declaration of the Holder or  automatically,  the
     Holder may  proceed to protect  and enforce its rights by an action at law,
     suit in equity, or other appropriate proceeding.  The Company shall pay all
     costs and expenses of collection, including, without limitation, attorneys'
     fees and  disbursements  in the event that any action,  suit or  proceeding
     shall be brought by the Holder hereof to collect this Debenture.

7. COMPANY'S RIGHTS TO OFFSET CLAIMS AGAINST DEBENTURE

     As a non-exclusive remedy for claims of indemnification  under the Purchase
Agreement,   the   Company   shall  be   entitled   to  offset  its  claims  for
indemnification under the Purchase Agreement against any amount that may be owed
by the  Company  under this  Debenture.  The  Company  may effect such rights of
offset by giving written notice thereof to the Holder, specifying the nature and
amount of the claims to be  offset.  The  Company  agrees to give the Holder not
less than  thirty (30) days notice of its  intention  to exercise  its rights to
offset hereunder in order to give the Holder adequate opportunity to satisfy any
such claims in cash.  The Holder shall not be entitled to convert this Debenture
pursuant to Section 4 hereof  during the  pendency of any notice of offset given
as described above.



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8. MISCELLANEOUS

     8.1. NO VOTING RIGHTS.  This Debenture  shall not entitle the Holder to any
     voting rights or other rights as a shareholder of the Company.

     8.2.  GOVERNING LAW. This Debenture and all acts and transactions  pursuant
     to this  Debenture  and the rights and  obligations  of the parties to this
     Debenture  shall be governed,  controlled,  interpreted  and defined by and
     under the laws of the State of Minnesota  and the laws of the United States
     of America applicable therein,  without regard to that body of law known as
     conflicts of law.

     8.3.  SUCCESSORS  AND  ASSIGNS.  Each  party  agrees  that its  rights  and
     obligations  under  this  Debenture  may  not be  transferred  or  assigned
     directly  or  indirectly  without  the prior  written  consent of the other
     party,  which  consent  shall  not  be  unreasonably  withheld,  except  in
     connection  with  the  sale of all or  substantially  all of the  assigning
     party's related business. Subject to the foregoing sentence, this Debenture
     shall be binding  upon and inure to,  the  benefit  of the  parties,  their
     successors and assigns.

     8.4. ENTIRE  AGREEMENT;  AMENDMENT.  This Debenture and the other documents
     delivered  pursuant  to  this  Debenture  which  are  incorporated  in this
     Debenture by  reference,  constitutes  the entire  agreement of the parties
     with  respect  to  the  subject   matter,   and  supersedes  all  prior  or
     contemporaneous  understandings  or  agreements,  whether  written or oral,
     between  the  parties  hereto  with  respect  to such  subject  matter.  No
     amendment or  modification  of this Debenture or any term of this Debenture
     shall be valid or binding  upon the  parties  unless  made in  writing  and
     signed by the duly authorized representatives of both parties.

     8.5. NOTICES AND DATES.  Unless otherwise  provided in this Debenture,  any
     notice  required or  permitted  by this  Debenture  shall be in writing and
     shall be deemed sufficient upon delivery,  when delivered  personally or by
     overnight courier and addressed to the party to be notified at such party's
     address  as set  forth  on the  signature  page  to  this  Debenture  or as
     subsequently  modified by written notice.  If any date provided for in this
     Debenture falls on a Saturday,  Sunday or legal holiday, such date shall be
     deemed extended to the next business day.

     8.6. PARTIAL INVALIDITY. If any term, provision, covenant or restriction of
     this Debenture is held to be invalid,  void or  unenforceable by a court of
     competent jurisdiction,  then the remaining provisions shall remain in full
     force and effect and shall in no way be affected,  impaired or invalidated.
     The parties agree to renegotiate in good faith any term held invalid and to
     be bound by the mutually agreed  substitute  provision in order to give the
     most approximate effect intended by the parties.

     8.7. NO WAIVER.  No waiver of any term or condition of this Debenture shall
     be valid or binding on either party  unless  agreed in writing by the Party
     to be charged.  The  failure of either  party to enforce at any time any of
     the  provisions  of this  Debenture,  or the failure to require at any time
     performance by the other party of any of the provisions of this  Debenture,
     shall in no way be  construed  to be a  present  or  future  waiver of such



                                       8


     provisions,  nor in any way affect the  validity of either party to enforce
     each and every such provision thereafter.

     8.8.  CAPTIONS  AND  HEADINGS.  The  section  headings  contained  in  this
     Debenture are for  reference  purposes only and shall not affect in any way
     the meaning or interpretation of this Debenture.  The captions and headings
     used  herein are for  convenience  and ease of  reference  only and are not
     intended to be a part of or to affect the meaning or interpretation of this
     Debenture.

     8.9.  COUNTERPARTS.   This  Debenture  may  be  executed  in  two  or  more
     counterparts,  each of which shall be deemed an  original  and all of which
     together shall constitute one instrument.

     8.10. FURTHER  ASSURANCES.  Each of the parties hereto from time to time at
     the  request  and  expense  of the  requesting  party and  without  further
     consideration shall execute and deliver such other instruments of transfer,
     conveyance  and  assignment  and take such further action as the requesting
     party may require to more  effectively  complete  any matter  provided  for
     herein.

     IN WITNESS  WHEREOF,  the Company has caused this Debenture to be signed by
its duly  authorized  officer and this  Debenture to be dated as of November 10,
2000.


                                        SELECT COMFORT CORPORATION


                                        By          /s/ Mark A. Kimball
                                                 -----------------------------
                                                    Mark A. Kimball
                                                    Senior Vice President and
                                                    General Counsel
                                        Address:    6105 Trenton Lane North
                                                    Minneapolis, MN  55442

Agreed and accepted by:

ST. PAUL VENTURE CAPITAL V, LLC



By:     /s/ Patrick A. Hopf
   ---------------------------------------
Its:    Managing General Partner
    --------------------------------------

Address:    10400 Viking Drive, Suite 500
            Minneapolis, MN 55344


                                       9


                             RESTRICTION ON TRANSFER

     THIS  DEBENTURE MAY NOT BE RESOLD OR TRANSFERRED  UNDER ANY  CIRCUMSTANCES.
THE  CONVERSION  SHARES  ISSUABLE  UPON  CONVERSION  HEREOF MAY NOT BE RESOLD OR
TRANSFERRED  UNLESS SUCH RESALE OR  TRANSFER IS EXEMPTED  FROM THE  REGISTRATION
REQUIREMENTS  OF THE  SECURITIES  ACT OF 1933,  AS AMENDED,  AND ANY  APPLICABLE
SECURITIES LAWS, AND THE COMPANY RECEIVES, PRIOR TO RESALE OR TRANSFER,  WRITTEN
REPRESENTATIONS  OF THE  HOLDER  AND  PROPOSED  TRANSFEREE  SATISFACTORY  TO THE
COMPANY  REGARDING SUCH TRANSFER OR, AT THE ELECTION OF THE COMPANY,  AN OPINION
OF  COUNSEL  REASONABLY  SATISFACTORY  TO THE  COMPANY  TO THE  EFFECT  THAT THE
PROPOSED TRANSFER OF THE CONVERSION SHARES MAY BE EFFECTED WITHOUT  REGISTRATION
UNDER THE SECURITIES ACT OR QUALIFICATION UNDER THE APPLICABLE  SECURITIES LAWS,
OR THE RESALE OR  TRANSFER  OF THE  CONVERSION  SHARES IS  REGISTERED  UNDER THE
SECURITIES ACT AND ANY APPLICABLE SECURITIES LAWS.


                                       10


                                 EXHIBIT A TO CONVERTIBLE SUBORDINATED DEBENTURE

                            FORM OF CONVERSION NOTICE

_______________, 20__

Select Comfort Corporation
6105 Trenton Lane North
Minneapolis, MN 55442

Attention:  President and CEO

Pursuant to the terms of Section 4.2 of that  certain  Convertible  Subordinated
Debenture dated  _______________,  2000 and issued by Select Comfort Corporation
(the  "Debenture"),  notice is hereby  given that the  Holder  elects to convert
$_________ of the principal  amount of the Debenture into shares of Common Stock
(as defined in the Debenture).  The originally issued Debenture accompanies this
Conversion  Notice  and is  surrendered  by the  Holder  for  conversion  of the
principal amount stated above in accordance with the terms of the Debenture.

The shares of Common Stock  issuable upon  conversion of the Debenture  (and, if
applicable,  a check  for any  amount  payable  in  lieu of a  fractional  share
interest and a replacement  debenture  instrument in the principal amount of the
Debenture that remains  outstanding  following the conversion  effected  hereby)
shall be issued in the name of the Holder and forwarded to:


                      -----------------------------------
                      -----------------------------------
                      -----------------------------------


[THE HOLDER]



By:
   -----------------------------------------
Its:
    ----------------------------------------



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