I love naps.
Naps became an especially big part of my life around - I think it was - 2005. At that time my wife gave me an iRiver H120 mp3 player. Because it recorded direct to mp3 as well as playing 20GB worth of music, it meant that I could archive my favourite audio books that we had on tape. For years I had been listening to books on tape to help go to sleep, but there was always the problem that at the end of the side of a tape there would be a big THUNK noise, which might wake you up. Plus the fiddliness of changing tapes to continue the story. When I had got some recorded, and bought some CD audiobooks which were even easier to get onto it, I could get about 40 complete audiobooks by my bed, in about the same volume as a single audio cassette in its case. Plus many podcasts such as In Our Time.
I know the above does not sound extraordinary nowadays but once in a while it is good to remember how extraordinary it is.
Anyway, with convenient access to a huge audio library that helped me sleep, I became good at having naps at pretty much any time of day, if circumstances permitted. I can remember the tipping point too. It was when I realised that if I just lay in bed and listened to a "tape" (actually mp3 of course), I didn't have to worry about having a nap. Worrying about going to sleep pretty much makes it impossible to sleep. Once I knew that when I felt myself slowly drifting down, I didn't have to worry, I got good at having naps.
I love naps for their own sake, but quite often they have a huge benefit for me. They let me turn myself off and on again. If I am feeling particularly miserable and I know it's not rational, a nap will very often reboot my brain into a more acceptable state. Perhaps I won't be happy but that clawing pointless misery might be gone. More often than not it is gone.