Originally published in mindbodygreen
On the proverbial Savannah of evolution, the temperature drops at night. That temp drop is one of several contextual factors that cue us to feel sleepy.
The optimal temperature for sleep is 65 degrees Fahrenheit. I find that anything in the mid to high 60’s works well.
In the spring and fall, my favorite way to keep the bedroom cool at night is to open a window. Added benefits: fresh air, lower electric bill, and better for the planet.
