I can't work out late or I won't sleep right. Figure out if you can or can't. +1 for Lights, phone and tablet, dead right on. Turn off lights around the house. Your body operates on light. That used to mean the sun. . . Artifical light stimulates. TV. Phone, tablet off. Reading makes me sleepy so I'll read before bed to wind down. Improvement *2. Get up with the sun, go to bed with the sun just like farmers used to do.