What stage is NREM sleep?
What stage is NREM sleep? Non-REM (NREM) sleep Stage N2 lasts from about 30 to 60 minutes. During this stage, your muscles become more relaxed and you may begin to have slow-wave (delta) brain activity. Stage N3 is deep sleep and lasts about 20 to 40 minutes. What is REM sleep Meaning? rapid eye movement […]