Try this method of deep muscle relaxation to improve your sleep quality

Progressive muscle relaxation: Benefits, techniques, and more

Relaxation Techniques For When You Can't Sleep

Relaxation Exercises

The Military Sleep Method: Why You Should Give It a Try!

Sleep hygiene: 8 ways to train your brain for better sleep

What happens to your mind and body when you don't sleep for 3 days

What Is Progressive Muscle Relaxation?

17 Easy Ways to Make Yourself Tired Fast

Progressive Muscle Relaxation: Tips for Stress and Sleep

Everything you need to know about progressive muscle relaxation to boost your well-being and optimize performance

Opinion Relaxing Is a Skill. Here's How to Do It. - The New York Times

5 Ways to Fall Asleep - wikiHow

Sleep Meditation: What It Is, Benefits and How To Do It