Hello Doctor, I m 73, a woman, a retired Ph.D. from biomedical research. My insomenia began around when I was 70. Now I go to bad 11pm, but would wake up every half or an hour for several times: during my wake up, I feel legs tingling which makes me turning and turning and can t stay in bed ( I hate this tingling feeling), so I have to get up to do something, and then go back to bed, trying to sleep again. I have to repeat this round trip several times every night until 2-3 am, then I can sleep for 2-3 hours, wake up, and then go back to sleep for another 2 hours or so until 8-9 am to get up. (If I get up early, then the day will be ruined.)