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Waking up several times throughout the night is typically not disruptive to one’s health, as long as falling back asleep occurs within about five to 10 minutes, said Dr. Michelle Drerup ...
“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 ...
On average, one has 3–5 episodes of NPT each night, and each episode lasts 30–60 minutes, although the duration is reduced with advanced age. [16] If one does obtain an erection while sleeping, but cannot obtain one while awake, a psychological cause or a medication side effect is usually suspected.
Pay attention to whether any of these are waking you up at night, and make adjustments accordingly. For example, if you always wake up because the sun peeks in at 5 a.m., hang up blackout curtains.
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. [140]
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]
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They woke me up in the middle of the night to transfer me to Research Psychiatric. It was quiet in the ward: Everyone was asleep. Back then, in the winter of 2010, I had extraordinarily vivid dreams, and I loved to dream, because I often dreamt of my children and other good things that were no longer part of my waking everyday life.