EXHIBIT 11

                                   CNS, INC.
           COMPUTATION OF NET INCOME (LOSS) PER SHARE OF COMMON STOCK
                                  (unaudited)




                                                   THREE MONTHS ENDED                SIX MONTHS ENDED
                                                        JUNE 30,                          JUNE 30,
                                                  1995             1994            1995            1994
                                                                                            
Income (loss) from continuing
operations before income taxes                $  7,697,959    $   (474,045)   $  9,951,125    $   (907,987)

Income tax provision                               910,000               0         910,000               0

Income (loss) from continuing operations         6,787,959        (474,045)      9,041,125        (907,987)

Income (loss) from operations of
discontinued sleep division (less
applicable income tax benefit of
$259,000 and $0 at June 30, 1995 and
1994, respectively).                                (9,497)         41,168        (459,901)          7,068

Gain on disposal of sleep division (less
applicable income taxes of $690,000 and $0
at June 30, 1995 and 1994 respectively).         1,225,890               0       1,225,890               0

Income from discontinued operations              1,216,393          41,168         765,989           7,068


Net income (loss)                             $  8,004,352    $   (432,877)   $  9,807,114    $   (900,919)


Income (loss) per common and
common equivalent share
  From continuing operations before
  income tax                                           .42            (.03)            .54            (.06)
  From income tax on continuing operations            (.05)              0            (.04)              0

  From continuing operations                           .37            (.03)            .50            (.06)

  From discontinued operations (sleep div.)              0               0            (.03)              0
  From gain on disposal of sleep division              .06               0             .07               0

  From discontinued operations, net                    .06               0             .04               0

Net income (loss) per common and
common equivalent share                       $        .43    $       (.03)   $        .54    $       (.06)

Weighted average number of
common and common equivalent
shares outstanding                              18,443,734      16,099,258      18,312,233      14,651,180