Q: What is the optimal temperature for sleeping? Does sleeping in cooler temperatures impact metabolism?
A: Normal body temperature is 98.6 degrees. During the day, the body attempts to maintain this temperature.
As the body prepares for sleep, there is a mild drop in normal body temperature to help induce sleep and help keep us asleep. Since the normal body temperature is lowered, a cooler room is advantageous for sleeping.
Recommending a specific range is difficult because of variation from person to person on what is deemed comfortable, but a typical temperature range is between 65 and 72 degrees Fahrenheit.
Does sleeping in cooler temperatures impact metabolism? Yes. If, you slept in an uncomfortably cool room, the number of calories burned would be greater because your body is attempting to raise its body temperature to stay warm.
However, the goal should be to achieve restful and recuperating sleep and not burn additional calories. A good night’s sleep is more important than burning a few extra calories in a disruptive night’s sleep.
The following website was used as a reference in answering the question:
http://www.webmd.com/sleep-disorders/features/cant-sleep-adjust-the-temperature