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Do You Have Insomnia? There used to be an old wives’ tale that suggested older people needed a lot less sleep than younger people. But according to The National Institutes of Health, older adults only need one hour less sleep the recommended amount is 6 1/2 to 7 hours per night. Unfortunately, almost half of adults age 60 and older experience insomnia, a form of sleep deprivation that can last anywhere from days to weeks to months. According to the National Sleep Foundation, normal sleep is NREM sleep or non-rapid eye movement sleep. There are four stages, beginning with light sleep and progressing to deeper sleep. During REM sleep, or rapid eye movement, our breathing becomes irregular and shallow; our eyes move rapidly; limb muscles become immobile, and vivid dreaming may occur. The entire NREM-REM cycle usually lasts around 90 minutes and can take place four to five times during a night of normal sleep.

United statesPeterj hauriMatthew walkerMark zielinskiUniversity of californiaNational institutes of healthLos angeles david geffen school of medicineHarvard medical schoolNational sleep foundationNational institutesLos angeles david geffen schoolLighting scienceNight shiftAmazon alexaMayo clinicBalice park