If I feel myself dipping then I put on earplugs, cover my eyes and take a nap. I awaken in 20 minutes like clockwork and am good the rest of the day. I usually

If I feel myself dipping then I put on earplugs, cover my eyes and take a nap. I awaken in 20 minutes like clockwork and am good the rest of the day. I usually get sleepy around 1:45. If I don't get a good night's sleep, then I might have two episodes like this. The nap is the cure. FWIW Winston Churchill was a great proponent of napping: http://www.nytimes.com/1989/10/02/opinion/l-churchill-understood-afternoon-naps-838589.html http://www.nytimes.com/1989/10/02/opinion/l-churchill-unders...