Good thought, andrew, but it still doesn't work for me. It's hard to wake up from a nap, and I'm dazed - and tired! - afterwards. I've tried this all times of day, and each time it's like being clobbered by a baseball bat.
I have had similar issues so mostly a "nap" for me is closing my eyes while laying down in a dark room for 20 minutes at most, often with my hands behind my head.
