Instructional control of sleep reduction.
Nightly sleep of 8 college students was gradually reduced from baseline levels by instructions implemented in a multiple baseline, changing criterion design. The reduction phases were 5%, 15%, and 30% decreases. Performance, academic, and sleepiness measures were collected. Consistent reductions occurred for all subjects from mean daily sleep times of 7.71 to 6.20 hr. per night, a 20% decrease. No negative side-effects were observed and subjects reported they enjoyed the additional free time afforded by reducing their sleep.
D000124:Achievement; D001521:Behavior Therapy; D001887:Boredom; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D009048:Motor Skills; D011930:Reaction Time; D012890:Sleep