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