Relier Pairs sleep and dreamsVersion en ligne sleep and dreams par cate chodnicki 1 theta waves 2 freud's wish fulfillment 3 Insomnia 4 beta wave 5 sleep functions 6 alpha wave 7 narcolepsy 8 circadian rhythm 9 sleep cycle 10 information processing theory awake and relaxed 90 minute repeating pattern of NREM and REM sleep biological clock slow waves of light sleep protection, recovery, memory, and growth dreams express unacceptable feelings sudden attacks of overwhelming sleepiness difficulty falling asleep or staying asleep awake and alert helps sort through day's events and consolidate memories