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