I might rest my eyes for a few minutes, but avoid napping.
Keeping a steady waking time is the main thing. Rather than limiting myself to 6 or 7 hours I'll stay up reading to a low warm light until sufficient sleep pressure has built up (easy enough to identify). A preceding relaxation routine helps, and time away from electronics. I do a quick yoga stretching thing. If it so happens I hit the sack and can't fall asleep, I'll sit up for a couple of minutes, then try again.
Onset insomnia is (or was) my main thing. I tried this and remember feeling totally dead. Couldn't get through it.