Yoga Nidra

A 20-30 minute guided nap where you deeply relax but (ideally) don't actually fall fully asleep. There was a Sky Ting TV one I did a lot during a period of really intense work stress/burnout that affected my sleep. I used to do it with a weighted eye pillow and it really helped. There are a bunch of free options on Insight Timer & YouTube. A guided body scan would also be similar. A bit easier to do when you work from home!