What do you do to improve your sleep?

I try to improve my sleep by shutting my brain down before it starts hosting a full committee meeting at midnight. I’ll dim the lights, get comfy, maybe read a little, and then remind myself that whatever I’m overthinking can wait until morning. My brain doesn’t always listen, of course, because apparently it thinks 11:47 p.m. is the perfect time to review every life decision I’ve ever made. But I try.