Full XL mattresses

Updated Oct 26, 2026 · 15 makers’ own size lists checked · findings from 5 independent testing sites · How we pick

54 × 80 inches 137.2 × 203.2 cm

A full XL is 54 inches wide and 80 inches long: as wide as a full, 5″ longer. A few brands make a 53 × 80 full XL instead.

Commonly used for: Tall sleepers who want more length than a full but less width than a queen; guest rooms and small bedrooms.

We’ve gathered every Full XL · 54-inch mattress we could find into one list: 37 from 10 makers, each sold in exactly 54 × 80 inches. 36 more come 1″ off.

  • 37 mattresses in this exact size
  • 19 ready-made, 18 made to order
  • 25 you can return
  • 3 independently tested
See the mattresses

Is your bed a Full XL · 54-inch?

Measure inside the frame and enter the inches.

54 × 80 or 53 × 80? Check your inches

Full XL · 54-inch mattresses are sold in more than one length. Measure your platform, then pick yours. An inch matters against a wall or slide-out.

All 37 Full XL · 54-inch mattresses

Each one is sold in exactly 54 × 80 inches, checked against the maker’s own size list.

Some manufacturers list full XL as 53 × 80 instead. We keep the 53- and 54-inch widths separate so a size label does not hide the difference. We may earn a commission from qualifying purchases. How we choose and research

36 more in 53 × 80, 1″ narrower

These are sold as Full XL · 53-inch (53 × 80), not 54 × 80. They fit a Full XL · 54-inch bed with an inch to spare, and are the right choice if your old mattress measures 53 × 80.

All Full XL · 53-inch mattresses

See every spec side by sideFeel, height, how it’s sold and returns for all 37, in one table
Detail
TypeInnerspringInnerspringInnerspringLatex over foamInnerspringFoamLatexLatex hybridLatexInnerspringInnerspringInnerspringInnerspringInnerspringInnerspringInnerspringInnerspringFoamFoamFoamMemory foamLatexMemory foamFoamHybridHybridMemory foamFoamFoamFoamMemory foamFoamMemory foamMemory foamMemory foamHybridHybrid
FeelFirmPlushSoftFeel not listed by the makerMediumSoft, Medium, FirmRearrangeable soft, medium and firm layersSoft (18 IFD latex), Medium (24 IFD), Firm (32 IFD)Medium, FirmGentle firmGentle firmGentle firm, Medium firmGentle firm, Medium firmGentle firmGentle firm, Medium firmMedium firmFirmNot publishedNot publishedSoft, Medium, Firm, Extra FirmSupport base: Plush, Balanced or Firm Support, Split firmness on Queen 6″ and upSoft, Medium, Medium-Firm, FirmMedium-firm; flippable (softer gel side, firmer foam side)FirmMediumFirm (10.5″), Medium (10.5″), Plush Euro Top (11.5″)Soft, Medium, FirmFlippable: soft side + medium side, or medium side + firm sideFlippable: soft side + medium side, or medium side + firm sideNot publishedMedium-plush (5 out of 10 on Wilderness's scale)Firm / medium-firm (7 out of 10 on Wilderness's scale)Soft, Medium, FirmMedium FirmMedium FirmMediumNot published
Height in Full XL · 54-inch12.5″12.5″13.5″8.5″12.5″12″10″13″7″ or 10″9″9″9″9″8″8″12″14″2.5″ or 3″ or 3.5″ or 4″ or 4.5″ or 5″ or 6″ or 7″3″ or 3.25″ or 4″ or 5″2″ or 12″6″ or 8″ or 10″6″ or 9″6″5.5″9″10.5″ or 11.5″10″8″10″5.5″10″8″6″ or 8″ or 10″ or 12″6″10″12″15″
How it’s soldReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeReady-madeMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to orderMade to order
ReturnsNo returnsNo returnsNo returns365-night trialNo returnsNo returnsNo returnsNo returns30-night trialReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnableReturnable365-night trial121-night trial365-night trial365-night trialNo returnsNo returnsNo returnsNo returns100-night trial100-night trialNo returns100-night trial100-night trial100-night trial100-night trial
Good fit ifFactory-direct innerspringFactory-direct innerspringFactory-direct innerspringYou want latex rather than memory foam on topFactory-direct innerspringFirmness choice, odd sizesRearrange your own latexLatex over coilsRVs and bunksFull XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)Full XL beds (54″ × 80″)RV bunk replacements by exact sizeMetro-fabric bunk replacementsPlain foam, any thicknessMemory foam, standard or customOrganic latex, 100-day trialLow profile, mid-pricedMattress Insider’s firm, thin entry modelMemory foam plus coilsThree feels, edge supportBudget foam, many odd sizesFlip for two feelsFlip for two feelsThin RV and odd shapesSpring-free RV comfortWeekend campersOlympic queen or 70″ RV kingThin mattress for a 70″ × 74″ RV kingFoam RV mattress in 70″ × 74″Coil RV mattress, 70″ × 74″Tall coil mattress for odd RV beds
Independent tests1 reviewer1 reviewer1 reviewerNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yet
Owner feedbackRelated model, not this exact oneRelated model, not this exact oneRelated model, not this exact oneNot yetRelated model, not this exact oneNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetNot yetOwners of this modelNot yetNot yetNot yetNot yetRelated model, not this exact oneMerchant-selected commentsMerchant-selected commentsMerchant-selected commentsNot yetNot yetNot yetNot yetOwners of this modelRelated model, not this exact oneNot yetNot yetNot yetNot yetNot yet
BuySee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceSee priceGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quoteGet a quote

Can’t find the right one?

A custom maker can build a Full XL · 54-inch mattress to your exact inches, including rounded or cut corners. Stores rarely keep this size on the floor.

The size at a glance

Inches
54 × 80
Centimeters
137.2 × 203.2
Feet
4′ 6″ × 6′ 8″
Sleeping area
30 sq ft 10% less than a queen
Also called
full XL, XL double, 54 × 80

Is a Full XL · 54-inch right for you?

Good for

  • Tall sleepers who want more length than a full but less width than a queen
  • Guest rooms and small bedrooms

Watch out for

  • Some brands’ full XL is 53 × 80. Check which width your frame needs.
  • Full XL frames and sheets are harder to find than queen.

Full XL · 54-inch vs other sizes

How it compares with the sizes people mix it up with.

SizeInchesSleeping areaCompared with Full XL · 54-inch
Full XL · 54-inch54 × 8030 sq ftThis size
Full54 × 7528.1 sq ft5″ shorter
Full XL · 53-inch53 × 8029.4 sq ft1″ narrower
Queen60 × 8033.3 sq ft6″ wider
Twin38 × 7519.8 sq ft16″ narrower, 5″ shorter
King76 × 8042.2 sq ft22″ wider

What else you’ll need

Sheets

Buy full XL sheets. Full sheets are 5″ too short; queen sheets are 6″ too wide.

A base that fits

Use a full XL frame or foundation. A queen frame is too wide.

Check your base

A topper (optional)

9 toppers come in this size.

Topper fit guide

Make sure it’s really a Full XL · 54-inch

Some manufacturers list full XL as 53 × 80 instead. We keep the 53- and 54-inch widths separate so a size label does not hide the difference.

Questions about Full XL · 54-inch mattresses

How big is a Full XL · 54-inch mattress?

A full XL is 54 inches wide and 80 inches long: as wide as a full, 5″ longer. A few brands make a 53 × 80 full XL instead.

Is there a full XL mattress?

Yes. It’s 54 × 80, sold by a few brands and many local factories.

What size is a full XL mattress?

Usually 54 × 80 inches. Some brands make 53 × 80.

Will it fit my bed frame?

Measure usable frame width and length, then compare the actual finished product dimensions. Check slat spacing and center support against the mattress maker’s requirements. Some manufacturers list full XL as 53 × 80 instead. We keep the 53- and 54-inch widths separate so a size label does not hide the difference.

Can I return a Full XL · 54-inch mattress?

25 of the 37 Full XL · 54-inch mattresses we list can be returned under the seller’s trial. Made-to-order mattresses often can’t. Each one’s return terms are in its details.

Where can I buy one?

Mostly online from the brands on this page, which ship to most US addresses. Local mattress factories can build one; stores rarely keep this size on the floor.

How much does it cost?

Prices change often, so we link to each seller instead of listing them. Odd sizes are often priced at or above the nearest standard size, and made-to-order ones usually cost more.

Are the owner reviews about this size?

Usually not. Owner feedback is about the mattress model, often in a more common size. Each summary says whether it’s about this exact model, and links to the source.

How common is a 54 × 80″ full XL · 54-inch in RVs?

134 of the 8,087 RV floorplans we have bed sizes for (2%) use exactly 54 × 80″ for the main bed, across 10 makers, most often Thor Motor Coach, Winnebago, Coachmen and Airstream. Sizes vary by model and year, so measure your platform before you order.

From makers’ spec sheets, brochures and floorplan drawings, plus dealer and owner reports where makers don’t publish inches.

LET’S FIND YOUR FIT

A few inches make
all the difference.

Enter your platform’s inside dimensions. We’ll find the exact listed size, or show the next step.

×
Need a hand measuring?

Played from YouTube. Watch on YouTube ↗