to add to the suggestions already...(just started this a month ago so no long-term results available) this has been effective so far: i do a 1,2,3 meditation where I breath in for three slow seconds and breathe out for three slow seconds. This has helped me go to sleep and it has also helped when I wake up at 2am and have trouble just mindlessly getting back to sleep. I just focus on breathing : ). Also, I NEVER let myself sleep during the day unless i am in the worst part of my depressive phases. Otherwise, it wrecks my sleep for days.