[martindbp]

I can add that I believed for a long time that napping was pointless because I can't fall asleep during the day (and takes 1 hr + at night), but I recently discovered that if I lie down still for 30-60 minutes after lunch, I get into this restorative meditative state. I can feel my arms getting heavier and I might twitch a bit, and I can feel like there's some kind of pressure in my head, but I'm still fully conscious. Despite not falling asleep, this short "nap" can feel like I effectively had 2-3 hours more sleep. Feels like it's flushing out all the bad stuff it didn't have enough time to do at night.