Split King Mattresses ⁽³⁾

Split king mattresses combine two Twin XL mattresses (38" x 80" each) to create a king-size sleep surface with independent comfort control. The ideal setup for adjustable bed frames and couples who prefer different firmness levels. Shop split king options from our top brands.

New to split kings? Read our complete split king guide — what it is, pros and cons vs. a standard king, and how to choose. Then pair your mattress with a split king adjustable base and split king sheets to complete the setup.

Split King Mattress FAQs

Is a split king the same size as a king?

Yes — both measure 76" x 80" overall. A split king is simply divided into two independent Twin XL halves.

Why choose a split king?

Each side can have its own firmness — even a different mattress model — and on a dual adjustable base, each person controls their own head and foot position. Separate mattresses also eliminate partner motion transfer.

What bedding does a split king need?

A split king sheet set: two Twin XL fitted sheets plus one king flat sheet. A standard king comforter fits on top.

Can I try a split king in person?

Yes — visit our Glendale showroom to test split king setups on adjustable bases side by side, with free delivery and setup across the LA area.