Split King mattress dimensions and shopping guide
A standard Split King normally combines two Twin XL mattresses, each approximately 38 by 80 inches, for a total footprint close to 76 by 80 inches. It lets two sleepers choose separate comfort surfaces and can allow independent movement when paired with compatible adjustable-base halves.
Check what the Split King price includes
This collection includes mattresses that may be configured through Twin XL options. One Twin XL mattress is one side, so a complete Split King requires two unless the listing explicitly includes a pair. Compare mattress heights, compatible bases and the total for both sides. A mattress listing does not automatically include adjustable bases.
Compare Split King adjustable bases · Compare complete mattress and base bundles · Read the Split King buying guide
Compare nearby mattress sizes
See the complete mattress size chart.
Choose your size before comparing prices
Open a mattress above and select the exact Split King or Twin XL configuration 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 Split King the same as split-head King?
No. A standard Split King has two separate mattresses. A split-head King is a connected mattress with a divided head section. They use different bedding and may need different base arrangements, so verify the exact configuration.
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.