A twin XL bed frame is designed to fit twin extra-long mattresses. Both twin XL and regular twin mattresses have a width of 38 inches, but a twin XL has a length of 80 inches, which is 5 inches longer ...

Advertising disclosure: When you use our links to explore or buy products we may earn a fee, but that in no way affects our editorial independence. A twin mattress is often the first mattress kids get ...

Buying a new bed? Our handy mattress size chart will help you out.

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Whether you are packing up for college and hunting down the best dorm sheets, outfitting a guest room, or ...