King Mattresses ⁽²⁴⁾

King size mattresses (76" x 80") deliver the ultimate sleep space — 16 inches wider than a queen, giving couples plenty of room to sleep undisturbed. Shop king mattresses in memory foam, hybrid, and innerspring from Brooklyn Bedding, King Koil, and Malouf at factory-direct prices.

King Mattress FAQs

What are king mattress dimensions?

A standard king measures 76 inches wide by 80 inches long — the same length as a queen, but 16 inches wider. Full comparison in our mattress dimensions guide.

King vs. California king — what's the difference?

A California king trades width for length: 72" x 84", four inches narrower but four inches longer. Choose Cal king for very tall sleepers or long, narrow rooms; standard king for maximum width.

Should we consider a split king instead?

If you and your partner want different firmness levels — or plan to use an adjustable base — a split king gives you the same total size with independent control of each side.

What room size fits a king bed?

Plan on a bedroom at least 12' x 10' so the bed doesn't crowd the room.