Yes, sleep mask for the win. I recommend the kind that is just a wide soft bit of cloth that wraps around your head. Like this. The ones with elastic straps or eye cups, gel, foam, whatever, have not been nearly as comfortable IMHO. I just want a pillowcase for my face.
I’ve also recently started wearing earplugs since my wife is up before me and the kitchen sounds always cause me to stir well before my alarm.
I can’t even imagine who might do them justice, but some of the books in Iain Banks’ Culture series could be a real treat.