How long does it take someone to go into their deepest stage of sleep?

Question

Like, from the time they fall asleep to the time they get to their REM cycle? Or whichever is the deepest stage.

Answer 1

There are two kinds of sleep in a normal sleep cyclerapid eye movement sleep (REM), when dreams are most vivid, and quiet sleep (non-REM). A complete sleep cycle takes 90 to 110 minutes on average. Very brief awakenings may occur between sleep cycles, especially towards the end of the sleep period. Everyone has about four or five cycles of non-REM and REM sleep a night. For older people, the amount of time spent in the deepest stages of non-REM sleep decreases and awareness of nocturnal awakening increases. These changes may be part of the reason older people are thought of as light sleepers.

During sleep, we usually pass through five phases of sleep: stages 1, 2, 3, 4, and REM (rapid eye movement) sleep. These stages progress in a cycle from stages 1 to 4 to REM sleep, then the cycle starts over again with stage 1. We spend almost 50 percent of our total sleep time in stage 2 sleep, about 20 percent in REM sleep, and the remaining 30 percent in the other stages.

During stage 1, which is light sleep, we drift in and out of sleep and can be awakened easily. Our eyes move very slowly and muscle activity decreases.

When we enter stage 2 sleep, our eye movements stop and our brain waves become slower, with occasional bursts of rapid waves.

In stage 3, slow brain waves called delta waves begin to appear, interspersed with smaller, faster waves.

By stage 4, the brain produces delta waves almost exclusively. It is more difficult to wake someone from stages 3 and 4, which together are called deep sleep, than from other stages of sleep. There is little or no eye movement or muscle activity. People awakened from deep sleep do not adjust immediately and often feel groggy and disoriented for several minutes after they wake up.

When we switch into REM sleep, our breathing becomes more rapid, irregular, and shallow, our eyes jerk rapidly in various directions, and our limb muscles become temporarily paralyzed. Our heart rate increases and our blood pressure rises. When people awaken during REM sleep, they often describe bizarre and illogical tales dreams.

The first REM sleep period usually occurs about 70 to 90 minutes after we fall asleep. The first sleep cycles of each night contain relatively short REM periods and long periods of deep sleep. As the night progresses, REM sleep periods increase in length while deep sleep decreases. By morning, people spend nearly all their sleep time in stages 1, 2, and REM.

Answer 2

I think its about in hour.

Answer 3

deepends on how much said individual had to drink. ha ha, no i think it depends on many things, the guy on the temperpedic matress proly lights out to the deep abyss quicker than most. i say avg about 4 hours into sleep.