Temperature in NREM sleep is best described as?

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Multiple Choice

Temperature in NREM sleep is best described as?

Thermoregulation during sleep shows that the body maintains a relatively steady internal temperature, even as sleep progresses. Humans are homeotherms, meaning core body temperature is kept within a narrow range by the body's thermostat. During NREM sleep there is a modest drop in core temperature due to heat loss mechanisms (like vasodilation and lower metabolic rate), but this is a controlled, limited change, not a free-for-all fluctuation. So the temperature in NREM sleep is best described as homeothermic. It isn’t poikilothermic (that would mean temperature tracks the environment), it isn’t truly unchanged (there is a small drop), and it isn’t broadly variable (thermoregulation maintains a stable range).

Thermoregulation during sleep shows that the body maintains a relatively steady internal temperature, even as sleep progresses. Humans are homeotherms, meaning core body temperature is kept within a narrow range by the body's thermostat. During NREM sleep there is a modest drop in core temperature due to heat loss mechanisms (like vasodilation and lower metabolic rate), but this is a controlled, limited change, not a free-for-all fluctuation. So the temperature in NREM sleep is best described as homeothermic. It isn’t poikilothermic (that would mean temperature tracks the environment), it isn’t truly unchanged (there is a small drop), and it isn’t broadly variable (thermoregulation maintains a stable range).

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