theta waves
beta wave
sleep cycle
narcolepsy
circadian rhythm
freud's wish fulfillment
sleep functions
information processing theory
Insomnia
alpha wave
helps sort through day's events and consolidate memories
difficulty falling asleep or staying asleep
dreams express unacceptable feelings
slow waves of light sleep
sudden attacks of overwhelming sleepiness
90 minute repeating pattern of NREM and REM sleep
biological clock
protection, recovery, memory, and growth
awake and alert
awake and relaxed
