−20%
Diamond
Diamond Dreamstage Value Collection Topaz Firm Tight Top 7" Mattress
4.2(49)
InnerspringFirm
$399 – $749$319 – $659
Sale and clearance mattresses are deeply discounted — either former showroom display units or last season's models, all brand new and ship with the same delivery + guarantee as full-price. Browse Twin XL Mattresses below — try every model in person at LA Mattress Store before you buy. Same free white-glove delivery and 120-night Love Your Bed Guarantee as full-price mattresses.
A Twin XL mattress measures 38" × 80" (3 ft 2 in × 6 ft 8 in). Same width as a Twin (38") but 5" longer. The standard college-dorm size — most universities spec Twin XL frames — and the right pick for tall single sleepers (over 5'6") who outgrow standard Twin length.
What pairs with a Twin XL. Two Twin XL mattresses side-by-side equal a Split King (the right adjustable-base setup for couples with very different sleep preferences — see Split King). Twin XL bedding is harder to find at general retailers; we stock fitted sheets and protectors specifically sized for it.
Room sizing. Minimum bedroom is 7 × 10 ft — same width as a Twin so the room footprint barely changes. The 5" of extra length is the only difference. See the full mattress size chart for every size compared, including the dimensions in feet, inches, and centimeters.
Every Twin XL mattress on this page ships with free white-glove delivery across Los Angeles, same-day setup on most in-stock orders, and the 120-night Love Your Bed comfort exchange so you can swap firmness if it isn't right at home.
Same width (38"), different length: Twin is 75" long, Twin XL is 80" long. Twin XL is the standard size for college dorms (most universities require it), and it's the size that two-of pair up to form a Split King for adjustable bases. Twin XL suits adults up to about 6'3"; taller sleepers should consider a Full or Cal King.
No — the 5-inch length difference means a Twin fitted sheet will be too short. Use Twin XL bedding specifically. We carry Twin XL sheets, mattress protectors, and bedding sets at every showroom and online.
Yes — two Twin XL mattresses placed side-by-side equal the exact dimensions of a standard King (76" x 80"). This is the standard configuration for couples using a split adjustable base where each side can elevate independently. If you go this route, look for Twin XLs designed to pair (the seam down the middle should be flush).
Free white-glove delivery on orders over $499 anywhere in Los Angeles. Same-day if you order before 4 PM, otherwise next-day. We set up the new mattress, haul away your old one, and recycle it — not landfill.
We back every purchase with a 120-night Love Your Bed Guarantee. Sleep on it for at least 30 nights to let your body adjust, then if it’s not the right fit, exchange it for any other mattress — we credit the full original price.
Yes. We offer 0% APR financing through Synchrony and Acima on approved credit. Terms vary by purchase amount and partner — apply in 60 seconds at checkout or in any showroom.
