This is Stage 5 sleep. 4th sleepless night - paranoia sets in. One good nights sleeps repairs all damage. Jet lag - traveling across time zones from west to east. Sleep Disorders Insomnia - difficulty falling asleep.
Tranquilizers can cause insomnia.
Narcolepsy - uncontrollable urges to fall asleep. Cause appears to be at least partially genetic. Sleep Apnea - person stops breathing while asleep. Discarding Mental Garbage - dreams are the minds attempt to weed out all irrelevant information that have happened to you. Neodissociative theory - people separate one part of their consciousness from another.