RV Full and Twin Mattress Sizes: 53x75, 28x75 and More
The standard RV full size mattress measures 53 x 75 inches, and RV twins are often 28 to 34 inches wide. Measure your bed's width at both ends first, since a short full is only 48 inches wide.
On this page (9 sections)
- What RV full size mattress fits your bed?
- Is an RV full the same as a home full?
- How much width does each sleeper get?
- What about short full and narrow twin beds?
- How do I know if my bed is a full, a short full or a twin?
- Where do full and twin beds show up in RVs?
- Does mattress thickness change the fit?
- Does the length change the choice?
- Which full or twin size should you buy?
An RV full size mattress is usually 53 by 75 inches, just a little narrower than a home full at 54 by 75. The short full is 48 inches wide, and RV twins are often 28 to 34 inches wide.
Length is 75 inches for every full and twin size in this guide, so width is the number to check first. Measure your own bed before you order, since RV sizes vary by maker.
For the full list of RV bed sizes, see our RV mattress sizes guide.
What RV full size mattress fits your bed?
A standard RV full is 53 by 75 inches, and the table shows the other full and twin sizes you're likely to see.
| Bed type | Width by length (inches) | Compared with a home full or twin |
|---|---|---|
| RV full | 53 by 75 | 1 inch narrower than a home full |
| Short full | 48 by 75 | 6 inches narrower than a home full |
| Home full | 54 by 75 | Standard size |
| Narrow twin | 30 by 75 | 8 inches narrower than a home twin |
| Home twin | 38 by 75 | Standard size |
Is an RV full the same as a home full?
Close, but they're not interchangeable. The width gap is one inch, which is easy to overlook until a mattress hits a wall or a cabinet.
Check the platform width at both ends before you assume a home full will fit.
WanderRest makes its 8-inch full in the USA, backs it with a 10-year limited warranty and calls the feel plush.
The pocketed coils cut motion transfer between partners, and the edge design adds stability and usable sleep space.
How much width does each sleeper get?
A 53-inch full shared by two people gives each sleeper about 26 inches, while a 48-inch short full gives about 24. Those numbers are rough, but they show how quickly a full runs out of room.
| Bed | Width (inches) | Width per sleeper if two share |
|---|---|---|
| RV full | 53 | About 26 |
| Short full | 48 | About 24 |
| Narrow twin | 30 | Meant for one sleeper |
Two adults may want more room than that, so think about how you'll use the bed before you choose. A full suits a single sleeper who wants room to roll over, while a narrow twin suits one person in a tight space.
If your platform has the room, a short queen is the step up from a full. Our short queen size guide covers the 74 and 75 inch lengths.
What about short full and narrow twin beds?
A short full is 48 by 75 inches, and RV twins often run 28 to 34 inches wide, with 30 by 75 a common narrow twin. These are the sizes to compare when a full won't fit.
The short full is 5 inches narrower than an RV full, so it suits a platform that measures close to 48 inches wide.
INEHM's 8-inch version ships as a mattress in a box with ventilated gel memory foam, and INEHM calls the feel medium. It also gives you a 365-night trial.
Twin beds show up in some fifth wheels and travel trailers, and a narrow twin may fit where a full won't.
Zinus infuses the memory foam in its narrow twin with green tea and activated charcoal and rates the feel as medium firm. The foam is also CertiPUR-US certified.
How do I know if my bed is a full, a short full or a twin?
Measure the width at the head and the foot, then match the shorter number to the table. The shorter width is the one that decides whether a mattress fits.
- Remove the old mattress and any topper.
- Measure the width at the head and at the foot.
- Measure the length down the middle, from the head edge to the foot edge.
- Match the shorter width: 53 is an RV full, 48 is a short full, 30 is a narrow twin, and 38 is a home twin.
A 30-inch twin won't take a 38-inch home twin, so the width decides it, not the name on the box. For a complete checklist, read how to measure an RV mattress before you buy.
Worked example: which full size mattress fits?
Say your platform reads 49 inches at the head and 52 at the foot. The narrowest point is 49 inches, so a 53-inch RV full is too wide, while a 48-inch short full fits with a little room to spare.
Use the narrowest number you measured, not the average of the two.
Twins work the same way. If a platform reads 31 inches at the head but 29 at the foot, a 30-inch narrow twin is too wide, and you'd look at a 28-inch width instead.
Where do full and twin beds show up in RVs?
Full and twin beds show up in travel trailers and fifth wheels, but the rig type doesn't set the size. The WanderRest 8-inch full is made for campers, travel trailers and compact RV sleeping spaces.
Measure the bed you have, because two travel trailers from different makers can use different widths. If your twin is actually a bunk, see RV bunk mattress size, and for wider beds, see RV king mattress size.
Does mattress thickness change the fit?
Yes, thickness changes the height, so a 10-inch full sits about 2 inches taller than an 8-inch full. The Omne Fria is 10 inches thick, and its foam is CertiPUR-US certified.
Omne pairs a ChillKnit cover with a 360-degree AeroVent mesh band to move heat and humidity away from you. It also runs a cut-to-fit shop that builds a mattress to your exact dimensions and ships it boxed.
Extra height is the trade-off for extra cushioning, so a thicker full isn't always the better pick in a small room. Check the space under your cabinets and any overhead clearance before you choose the thicker option, and see how thick should an RV mattress be for planning.
Weight climbs with size and thickness, which matters if your bed lifts on struts. The Zinus narrow twin weighs 15.9 pounds, the INEHM short full 36, the Omne Fria 51 and the WanderRest full 60.
Does the length change the choice?
Usually not in this guide, since every full and twin size here is 75 inches long. Check the length anyway, because some RV beds run shorter or longer than that.
A 75-inch mattress won't fit a 74-inch platform, while on an 80-inch platform it leaves about 5 inches of open space at the foot. Measure the length down the middle and along both sides, the same way you measured the width.
Which full or twin size should you buy?
Buy the full or twin size mattress that matches your shortest measured width, and never a larger one.
- Pick the RV full, 53 by 75, if your platform is 53 inches wide.
- Pick the short full, 48 by 75, if your platform is 48 inches wide.
- Pick a narrow twin, such as 30 by 75, if your platform is between 28 and 34 inches wide.
- Pick a home twin, 38 by 75, only if your platform is 38 inches wide and your doors and cabinets clear it.
Next, read our RV short queen vs RV full guide if you're deciding between a full and a short queen.
Frequently asked questions
Is an RV full the same as a home full mattress?
Almost, since both are 75 inches long, but an RV full is usually 53 inches wide and a home full is 54. That one inch can matter on a tight platform, so measure the width before you assume a home full will fit.
How wide is a narrow twin RV bed?
Narrow twins for RVs are often 28 to 34 inches wide and 75 inches long, which is much narrower than a home twin at 38 inches. A 30-inch narrow twin suits one sleeper in a tight space, so measure the platform before you pick a width.
Can a short full mattress replace an RV full?
Usually only if your platform is about 48 inches wide, because a short full is 5 inches narrower than an RV full at 53 inches. A 48-inch mattress on a 53-inch platform leaves about 2.5 inches of gap on each side, so the width you measure decides the choice.
