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