My sleep cycle was upside down for years, too. I would be able to go to sleep until 4 or 5 in the morning and then I would sleep until afternoon. All of a sudden in February, it corrected itself and I have no idea why! I go to sleep about 12:00 and get up about 9:00. Crazy! I am so sorry you are having this problem, too! Klonopin does help me do to sleep & a baby dose of Trazadone gives me a good deep sleep. I tried Ambien once... Laid in bed just waiting for it to hit.. 3 days later I was STILL awake!