The military method The United States Navy Pre-Flight School created a routine to help pilots fall asleep in 2 minutes or less it took pilots about 6 weeks of practice.
2.Drop your shoulders to release the tension and let your hands drop to the sides of your body.
3.Exhal,relaxing your chest
4.Relax your legs, thighs and calves.
5.Clear your mind for 10 sec by imagining a relaxing scene.
6.If this doesn't work, try saying the words don't think over and over for 10 sec.