Turning off your TV and computer a few hours before bedtime will result in more satisfying sleep. Volunteers who spent more pre-bedtime hours in front of a screen were more likely to report they didn’t get enough sleep, even though they slept as long as the control group. TV and computer screens emit blue light that suppresses melatonin production that starts at 10pm.

“If you block that output, you’ll disrupt your sleep.

Try listening to a radio instead.