"Tight or binding nightclothes are out. (Sleeping nude is best.) You sleep a deep, often dreamless sleep in which there is little or no motion. [...] During the night, if you awaken for any reason, do NOT start thinking! When you want to get back to sleep, quickly go through your relaxation routine and you can be asleep immediately. You achieve the happy state of a great sleep generally only after long practice and perfection of your relaxation skills. A pleasant physical workout in the gym or out of doors is a fine passport to a great sleep. ("