Agree with those who have suggested trying melatonin. I recently had a sleep study that indicated lack of REM sleep, which means I am not getting enough sleep during this most restorative (or "dream") phase. My doctor suggested trying melatonin and it is helping. And you should see your doctor for a follow-up and explanation of the sleep study results if you haven't already done so. One word of caution on the melatonin (which you can buy over the counter at drug stores and health food stores): try taking a half of one first. Some experts say that the amount of melatonin in those OTC products is 2-3 times what we need. The side effects from that over-dosage include headaches, gastric disturbances and feeling "hung over" the next day, all of which I experienced. I am much better on half the dosage, even though it didn't work as well in term of aiding my sleep. However, the trade off to me was worth it.