Depending on the color palette you choose for your bedroom, something like this in either gray or the ivory may look nice with the design of your furniture....Textured Chevron Duvet
http://www.2uidea.com/category/Xl-Twin-Comforter/ PB Teen - Chevron Duvet Cover + Sham, Pool
Textured Chevron Duvet Cover #manchesterwarehouse
Do you love this? Duvet Cover Magical Thinking Pom-Fringe Duvet Cover Floral Duvet Magical Thinking Moroccan Tile Duvet Cover Constallation Duvet Cover. I so
Palette for Master Bedroom. Organic Chevron Duvet Cover + Shams - Slate | west elm
Chevron Duvet Cover + Sham, Light Gray, $28.50-$109, Pottern Barn Kids. DANA TYDINGS PICK.
stay neutral with these yellow and blues
Beadboard Loft Bed | PBteen (but it doesn't have to look teenager-y)