Sleep issues are one of the reasons I decided to retire when I did. I usually go to bed around 10. I fall asleep within 2 - 5 minutes of laying down. The problem is how many times I wake up during the night, and whether I'm able to fall asleep again shortly thereafter. Sometimes I'll lay awake for 2, occasionally 3, hours, thinking I'm going to fall back asleep any minute now. And then I don't. When that happened 3 nights in a row, Thursday and Friday at work were difficult. Mastering the 10 minute power nap helped a lot, but now I just say "screw it" and head to my recliner chair for 45 - 60 minutes and get back some of that quality rest that I missed out on during the night. Unless I'm fishing, of course. Some of my fishing partners are flat out amazed at my gravel bar napping skilz.