Twin XL mattress dimensions and shopping guide
A Twin XL mattress is approximately 38 inches wide and 80 inches long. It has the same nominal width as a Twin with about five extra inches of length. It suits one sleeper who wants more legroom without moving to a wider mattress.
One Twin XL or two for a Split King?
One Twin XL is a single mattress. Two Twin XL mattresses placed side by side create the usual 76-by-80-inch Split King footprint. For a two-mattress setup, compare finished heights, each sleeper’s preferred feel and the exact base configuration. A standard Twin frame is usually too short for Twin XL.
Split King mattress shopping · Adjustable bases
Compare nearby mattress sizes
See the complete mattress size chart.
Choose your size before comparing prices
Open a mattress above and select Twin XL to see its current price and available options. Product-card starting prices may represent a smaller size. Finished dimensions, height and availability vary by model.
Is a Twin XL listing a complete Split King set?
Usually a Twin XL option represents one mattress. A Split King needs two Twin XL mattresses unless the product explicitly lists a pair or complete set. Check the included quantity, selected size and cart total.
Shop online or compare selected models at our Magnolia, Huntsville, Montgomery and New Caney showrooms. Call ahead for a specific display. Read delivery and setup options and the written comfort-exchange terms before ordering.
