This is the Pixel Nostalgia Duvet Cover available from Society6 seller Boo! Studio. It has a bunch of oldschool 8-bit superheroes printed on it and costs $89 for a full size, $99 for a queen, and $129 for a king. The same print is also available as throw pillows or a rug in case your bed is actually a pile of crushed egg cartons like mine is. And before you go making a joke about how hard it's gonna be for some nerd to get laid in a bed covered in 8-bit superheroes, just realize I'm a nerd that gets laid in a pile of crushed egg cartons. Just think about that. Not too long though, because it can get depressing quick.
Keep going for a shot of the print.
Thanks to James, who agrees dark colored comforters are best because they help hide pee stains.