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