You can make your bed rock , girl.
Hang string lights above your bed to add a little magic.
Hanging the lights behind a sheet or thin curtain helps make your room feel less like a Christmas display and more like a FaiRy WoNDeRLanD. You can use normal tree lights or get these delicate ones at Urban Outfitters.
Dress your bed in a giant sweater with a cable-knit blanket.
Knit your own blanket if you're looking for a project; if not, you could buy this throw (or this cheaper Ikea version), order a handmade one on Etsy (for example here, here, or here), or check out these cool chunky wool options.
Le Souk / decoist.com
Get a real down comforter.
It's just one of those things that makes more a difference than you think it will. Sleeping under a beautiful weightless cloud of bird-warmth feels so much better than wrapping yourself in, like, endless layers of swampy padding made out of recycled plastic bottles. Good Housekeeping has recommendations for the very best in feathers.