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“It’s actually normal to wake up several times per night, but awakenings need to be more than three to five minutes long to be remembered the following day,” says Dr. Audrey Wells, MD, a ...
The primary difference appears to be that pre-light cultures have more broken-up sleep patterns. For example, people without artificial light might go to sleep far sooner after the sun sets, but then wake up several times throughout the night, punctuating their sleep with periods of wakefulness, perhaps lasting several hours. [145]
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic, bifurcated, or bimodal) sleep refers to two periods, while polyphasic usually means more than two. [1]
A 2002 study of older adults (age 40–65) in San Diego found 3.1% had complaints of difficulty falling asleep at night and waking in the morning, but did not apply formal diagnostic criteria. [63] Actimetry readings showed only a small proportion of this sample had delays of sleep timing.
Morgan Swofford for LittleThings. Everyone's body has an internal cycle of waking and sleeping. The amount of sleep and times of sleep will vary from person to person and will also change with age ...
in the U.K. for less than a year and living together only a couple of months, having met shortly after we both arrived from the States the previous spring. Perhaps I needed a bit of distraction, as I’d given up smoking the night before and had made such a public fuss there was no turning back. Or maybe it was the thought of the new decade ahead.
One of the important questions in sleep research is clearly defining the sleep state. This problem arises because sleep was traditionally defined as a state of consciousness and not as a physiological state, [14] [15] thus there was no clear definition of what minimum set of events constitute sleep and distinguish it from other states of partial or no consciousness.
Regularly peeing more than once a night is considered nocturia. "If you’re waking up to go to the bathroom two or more times per night, it’s a good idea to talk to a doctor," says Harris.