On the road to recovery

Well It's been three weeks since my surgery, and I can't believe how fast I am recovering. I have to take it easy on the left leg and be careful to not overdo it, but I'm getting along pretty well. I went and worked a little yeasterday and did some Relief Society work. It wore me out. The only thing I can't get fixed is my ability to sleep at night. I'm really messed up right now. I'll be really tired and think that "Tonight I"ll sleep." But I don't. Anybody have a good idea. If I take even one tylenol p.m. it knocks me out for half of the next day! help!!!!