What are the side effects of only sleeping for 5 to 6 hours for at least 2 weeks?

Your body needs a certain amount of sleep which differs with different ages. Infants have short awake-sleep cycles. Children need 10-12 hours of sleep. For adults 8 hours of sleep is recommended, but it is more important to reach REM sleep, which occurs about 2 hours after initially falling asleep . When you are deep in sleep you enter the REM stage where your eyes move extremely fast and they flicker, and you dream. But, many people reach REM but sleep overall only 5 or 6 hours a night. Highly creative people can sleep 3 to 4 hours and do fine. The most important thing is to determine how much sleep is best for you, between 5 and 8 hours, and stick to a sleep routine (time of night, etc.).