I have delayed sleep phase syndrome, so for a long time I slept very little and very badly. Then I fixed my schedule to accommodate my body clock, and now I sleep extremely well.

I like a fairly firm mattress, a side-sleeper foam pillow (a recent change from two regular firm pillows), and crisp sheets in jewel tones (though I don't mind white ones). I use two king-size pillows for body pillows, to replace the giant stuffed bear and giant stuffed lizard I used to rely on for comfort when I was in LDRs and lonely at night. It's been so long since I slept next to an actual other person that I don't think I'd be able to do it easily. I like the theory of having a cat sleep on my bed but the practice has never worked well; they always wake me up.

I sleep under two quilts and a blanket no matter the weather, and am considering getting a weighted blanket for the summer; that's not urgent, though, because I'm always cold and glad to snuggle under lots of blankets.

I used to hate white noise. Then I developed tinnitus. Now I sleep with a custom mix of brown noise and ambient sounds playing from my phone or tablet, plus my air conditioner fan on to block noise from the rest of the apartment. Since everyone else in the house—including the cats and the toddler—gets up much earlier than I do, that's very important.