6. Turn down the thermostat
“I make sure my room isn’t too hot. Most people do sleep best in a cool room. To help keep things cool, take off that extra quilt, duvet or electric blanket before you climb into bed. Also, ensure the room is well ventilated, but not breezy.”
If you have chronic insomnia, these suggestions are unlikely to cure it on their own. If sleeplessness persists, see your doctor.