She should stop waking on her own and instead wait for her parent, who has become her alarm clock. 3. As you add 15-minute increments between wakings, she learns to sleep for longer periods of time. Eventually you phase out the wakings altogether and find that your baby is sleeping through the night.
Usually, REM sleep happens 90 minutes after you fall asleep. The first period of REM typically lasts 10 minutes. Each of your later REM stages gets longer, and the final one may last up to an hour. Your heart rate and breathing quickens. You can have intense dreams during REM sleep, since your brain is more active. Babies can spend up to 50% of their sleep in the REM stage, compared to only about 20% for adults.
* How many hours do you sleep each night? Any answer is, of course, acceptable, but the ideal answer is in multiples of 90 minutes. That means an individual should plan for six hours (four 90-minute cycles), seven and a half hours (five 90-minute cycles), or nine hours (six 90-minute cycles) of sleep each night.t takes 45 minutes to float down into the deepest point of your first sleep cycle. If youâre awakened while in this stage of sleep, youâll feel very disturbed. But as soon as you reach this deep phase, you start on your way back up the right side of the âVâ toward a lighter sleep.