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.
Each sleep cycle that is experienced every night lasts approximately 90 to 110 minutes on average. Earlier in the night you experience more NREM stages 3 and 4 with little REM sleep, but as the night progresses you spend less time in NREM stages 3 and 4 also known as slow wave sleep, or Belta wave sleep.eep sleep is reached about 30 to 45 minutes into your sleep cycle. If your an 8 hour sleeper you will move through about 5 sleep cycles, where a 6 hour sleeper will move through 4 and a half cycles. Best Answer. (like sisipamprsboi above) will often wake up ~ one hour as they complete each sleep cycle...DD.