Second, the bedroom must be dark, and by dark I mean pitch black. Our eyelids are the thinnest piece of skin on our bodies so that the light from an alarm clock or even a cable box is enough to get into our eyelids and disrupt our sleep.
Finally, the best sleeping temperature is actually a chilly 65 degrees Fahrenheit. Cool bedroom temperatures are associated with a faster sleep on set and better sleep quality whereas warm environments can cause sweating, unpleasant dreams, and poor sleep quality.