RV Mattress Size Finder

How to use the RV mattress size finder

1. Take the old mattress off and measure the platform it sat on: side to side, then head to foot. Measure inside any lip or frame.
2. Look at the foot corners. If they are rounded or cut off so you can walk past the bed, pick that and measure how far the curve or the cut runs along each edge: set a carpenter’s square in the corner and measure from its corner to where the platform edge starts to turn.
3. Type the tallest sleeper’s height (5’9″ or 175 cm both work), and the headroom from the platform up to whatever is above it: the ceiling, a cabinet or the bunk above. On a bunk with a rail, add the rail’s height above the platform.
4. The answer updates as you type, drawn to scale from above. Copy link keeps it.

RV mattress sizes chart

Sources: the Sleep Foundation’s RV mattress chart, rvmattress.com, Lippert and Rest Right Mattress for the RV sizes; Amerisleep for the house sizes. The same name can mean two sizes: an RV short queen is 60 × 74″ from some makers and 60 × 75″ from others, and some sell a 70″-wide RV king. Go by the inches.

The rules behind the answer

The fit: no bigger than the platform, and the ±1″

The finder picks the biggest standard size that is no wider and no longer than your platform. Makers allow about ±1″ on the size they state (Amerisleep), so a mattress with under 1″ to spare is a tight fit: check the listing’s own inches. A size that is only 1″ too big may still squeeze in. A gap of more than 2″, past what a maker can be off either way, is a gap you will feel, and a mattress cut to your platform fills it.

Rounded and cut-off corners

Walk-around RV beds often have their foot corners rounded or cut off. A square mattress corner hangs past them: fine on an open platform, not inside a frame or against a wall. The finder works out by how much, from the size of the curve or cut and the room you have to spare. RV mattress makers cut rounded, angled and notched corners to order, so the answer is usually the same size with the corner to match.

Long enough: 6″ longer than you

A mattress should be at least 6″ longer than the tallest person sleeping on it (Texas Mattress Makers). That makes a 75″ short queen right for sleepers up to 5′9″, and an 80″ RV king or queen right up to 6′2″.

Thick enough, but you can still sit up

Sitting up takes about 0.52 × your standing height from the mattress to the top of your head (Pheasant, Bodyspace). The thickest mattress that still lets you sit up is your headroom minus that: with 44″ above the platform, a 5′9″ sleeper can have up to 8″ of mattress.

A bunk’s rail: 5″ above the mattress

The US rule for bunk beds puts the top of the guardrail at least 5″ above the mattress (16 CFR 1513.3(a)(6)). A thick mattress on a bunk turns a 12″ rail into a 3″ one, so the finder takes 5″ off the rail height to give the thickest mattress for it.

Worked examples

A 60 × 75″ platform with square corners, 44″ of headroom. It takes an RV short queen, 60 × 75″, exactly. A 5′9″ sleeper can sit up on a mattress up to 8″ thick.

The same platform with both foot corners rounded, 6″. Still an RV short queen, 60 × 75″, ordered with 6″ rounded corners: a square-cornered one hangs 2½″ past each corner. A three-quarter (48 × 75″) fits the corners as it is, 12″ narrower.

A 64 × 80″ platform, a 6′2″ sleeper. An Olympic queen is 2″ too wide, so it takes a queen, 60 × 80″, with a 4″ gap: a mattress cut to 64 × 80″ fills it.

A 30 × 75″ bunk with a 12″ rail. It takes an RV bunk, 30 × 75″, and the mattress can be 7″ thick at most so the rail still stands 5″ above it.

Common RV mattress mistakes

• Measuring the old mattress. A worn mattress has shrunk and sagged, and it may never have fit. Measure the platform.
• Buying “queen” for an RV queen bed. Many RV “queens” are short queens, 5″ shorter than a house queen. A house queen then hangs off the foot or will not close a slide-out.
• Ignoring the corners. A square corner on a rounded walk-around platform catches your shins, and inside a frame the mattress will not lie flat.
• Going thick. A 12″ mattress on a bed under cabinets or a bunk above can leave no room to sit up, and over a bunk it makes the rail too low to stop a roll.
• Forgetting the slide-out. On a bed that slides in, a thicker mattress can hit the ceiling or the wall when the room closes. Measure the gap with the slide in.

Read next

• RV interior remodel ideas
• Small camper interior ideas for cozy living
• RV organization ideas
• Adult bunk bed ideas

RV mattress size questions

What are the RV mattress sizes?

RV short queen 60 × 75″ (some makers 60 × 74″), RV queen 60 × 80″, Olympic queen 66 × 80″, RV short king 72 × 75″, RV king 72 × 80″, RV full 53 × 75″, three-quarter 48 × 75″, and bunks from 28 × 75″ to 35 × 79″. Twin, twin XL, full, queen, California king and king are house sizes that RVs use too.

What size is an RV queen mattress?

An RV queen is 60 × 80″, the same as a house queen. The RV short queen, the more common RV bed, is 60 × 75″ (60 × 74″ from some makers): as wide as a queen and 5″ shorter.

What size is an RV king mattress?

An RV king is 72 × 80″: 4″ narrower than a house king (76 × 80″). An RV short king is 72 × 75″. Some makers sell a 70″-wide RV king, so measure the platform before you order.

What size is an Olympic queen mattress?

66 × 80″: 6″ wider than a queen and the same length. Queen sheets stretch over it on some mattresses; fitted sheets sold for an Olympic queen fit best.

What size is a camper bunk mattress?

RV bunks run from 28 to 35″ wide and 74 to 80″ long. The common ones are 28 × 75″, 30 × 75″, 30 × 80″, 34 × 75″ and 35 × 79″. Truck bunks are 42 × 80″.

What is a three-quarter mattress size?

48 × 75″ in most RVs, between a twin (38″) and a full (54″) in width. Some are 48 × 80″.

Can I put a regular mattress in my RV?

If the platform is a house size, yes: a 60 × 80″ platform takes a house queen, and 54 × 75″ a house full. Most RV beds are not house sizes, though: a short queen platform is 5″ too short for a house queen. The finder says when a house size fits.

How thick should an RV mattress be?

As thick as your headroom allows. Sitting up takes about 0.52 × your height above the mattress, so subtract that from the space above the platform. On a bunk, keep the rail at least 5″ above the mattress. Under a cabinet or a bunk that often means 6–8″.