[murrayh]

Isn't that exactly what a nap is?

Does your awareness reduce? It's hard to notice a change in awareness. Sometimes I notice a transition from haziness to attention when a sound draws my attention. My understanding is that the haziness is a form of sleeping and is exactly what a nap is meant to be. If you fall into a deeper sleep you will get some of the side effects others talk about -- grogginess etc. The length and depth of sleep is related, so I thought that's why you need to be careful to only nap for short periods of time.

[peteretep]

When I nap, even for 20m, I dream. Grogginess comes if I take longer than 20 minutes or so - although if I time it right, I can hit a non grogginess event again after 1.5 hiurs. Sleep cycles, I guess