Cant' sleep? Do what a friend of mine does. Read poetry. I am not implying that poetry is so boring that it will put you to sleep. But it can be soothing, especially if read aloud---which may mean moving to another room. But the sounds and rhythms can be as calming as deep breathing. Keep an anthology by the bedside. I recommend "Americans' Favorite Poems" edited by Robert Pinsky and Maggie Dietz.
Of course, there are also many poems that can sprout in your ear buds and are the next best thing to having someone read to you. And we all love being read to sleep.