How long can a human being survive without sleep?
How long can a human being go without sleep? Is this something safe to do?
Is it possible for a human being to skip sleep for 14 years? Could s/he do it by practicing meditation and exercises? What is the maximum numbers of hours a normal person can stay awake and concentrate on anything without sleeping? Would this make you insomniac forever? How do I sleep the minimum amount of time without risking health? Is it possible to get to sleep 2 hours earlier than usual without waking up in the middle of the night and staying awake? Is it possible to sleep without dreaming? By practicing to sleep for 5 or 6 hours, is it possible to maintain a healthy life style? How can I sleep without waking up in the middle of the night? Is there a way to bypass sleep? How I sleep all night without wake up? Is it bad to work out when you only got 4 hours of sleep the night before? Is it unhealthy to sleep for over 12 hours? How do I sleep only for 5 hours and still be energized throughout the day? How many hours of sleep in a day is enough for a person? Does anyone sleep only once every two nights? Is it possible and how healthy? How not to have a sleep paralysis? Is it healthy to sleep for 12 hours a day? Why or why not? Is it normal to sleep for 5 hours and wake up feeling very energized? How many hours shoul one sleep continuously? Is it possible for a person to enter full REM dream sleep within minutes of falling asleep? How can I sleep without closing my eyes? How do I avoid sleep so much? Would having two 4-hour cycles of sleep (per day) as effective for the body as sleeping 8 hours in a row? What makes a person to go from light sleep to heavy sleep? How can you manage sleep (decrease sleeping time) in daily life? How long does one spend in light sleep versus deep sleep? How many consecutive days for humans can stay awake before dies? What do you do when you suffer from lack of sleep? How does one avoid sleep? Is it healthy to only sleep once every two nights? How long can a person stay awake before he/she goes insane?