What Size Are RV Mattresses? Common Dimensions Explained

If you’re wondering “What size are RV mattresses?”, you’re not alone. RV beds often look similar to regular mattresses, but their dimensions can be very different. Getting the size wrong can lead to poor fit, wasted space, and uncomfortable sleep on the road.

This FAQ-style guide explains the most common RV mattress sizes and dimensions, how they compare to standard beds, and what to measure before you buy.

What Are the Standard RV Mattress Sizes?

Unlike home mattresses, RV mattress sizes aren’t fully standardized. However, several dimensions appear again and again in many campers, trailers, and motorhomes.

Here are some of the most common RV mattress sizes you’ll see:

📝 Key idea:RV mattresses are often shorter or narrower than standard home mattresses to save space and fit around cabinets, slide-outs, and curved walls.

How Do RV Mattress Sizes Compare to Regular Mattresses?

A big part of answering “What size are RV mattresses?” is understanding how they differ from the beds you might already know.

Are RV queen mattresses the same as regular queens?

Often, no. Many RVs use a “short queen”:

• Standard queen: 60" x 80"
• RV short queen: about 60" x 74"

That 6 inches of missing length can matter if you are tall or like extra legroom. Some RVs do use a full-length 60" x 80" queen, but not all.

What about RV king size?

An RV king is usually narrower or shorter than a standard home king:

• Standard king: 76" x 80"
• Common RV king: 72" x 75" or 72" x 80"

This smaller footprint helps the mattress fit into tight bedrooms, especially in fifth wheels and large motorhomes.

Why are RV bunks and twins different?

RV bunk and twin mattresses are designed to maximize limited space. They:

• May be narrower than standard twins
• May be shorter to fit against walls or over storage
• Sometimes have rounded or angled corners

This is why regular sheets and mattress toppers may not always fit well on RV bunks.

How Can I Tell What Size My RV Mattress Really Is?

Because dimensions vary, the most reliable way to answer “What size are RV mattresses?” for your specific rig is to measure it yourself.

How to measure an RV mattress

1. Remove bedding and toppers.
2. Measure the length from head to foot, along the top.
3. Measure the width from side to side.
4. Note any curved, angled, or cut-off corners.
5. If you want extra comfort, check the maximum thickness your space allows (under cabinets or near slide-outs).

✂️ Tip: Also measure the platform or bed frame, not just the existing mattress. Sometimes the factory mattress is slightly smaller than the actual space.

Why Do RV Mattress Sizes Matter So Much?

Choosing the right RV mattress size affects both comfort and function in a small space.

• Comfort:
  A mattress that’s too short can leave your feet hanging off the edge, especially for taller sleepers.

• Space use:
  Oversized mattresses can block drawers, doors, or walkways, making the RV feel cramped.

• Bedding fit:
  Sheets, toppers, and protectors are easier to use when they match the mattress size. Standard bedding may be too loose or too tight on RV-specific dimensions.

Common Questions About RV Mattress Sizing

Can I use a regular mattress in my RV?

Sometimes. A standard mattress may fit if:

• The bed platform is large enough, and
• There is clearance for walls, cabinets, and slide-outs

However, standard mattresses can be heavier and bulkier, which may affect storage and maneuverability in tight spaces.

What if my RV mattress has rounded corners?

Many RV beds have rounded or angled corners so you can walk around them more easily. When replacing the mattress:

• You can look for RV-specific sizes with rounded corners
• Or accept a square-corner mattress and know it may slightly change how the space feels

Is thickness part of the size?

Thickness is not part of the standard length x width measurement, but it still matters. RV mattresses are often thinner so they:

• Fit under overhead cabinets
• Work on fold-out or lift-up platforms
• Keep weight lower in the RV

If you prefer a thicker mattress, measure vertical space carefully.

What Should I Consider Before Choosing an RV Mattress Size?

When deciding what size RV mattress will work best:

• Measure everything: the current mattress, the platform, and surrounding space
• Think about users’ height: taller sleepers may need full-length options
• Check access points: make sure you can still open doors, drawers, or walkways
• Plan for bedding: confirm you can find sheets and protectors in the size you choose
• Weigh the trade-offs: larger mattresses mean more comfort but less floor space

✔️ Quick Mattress Takeaways

Key points to understand about “What Size Are RV Mattresses”:

• RV mattresses come in unique sizes that differ from standard home beds.
• Short queen (60" x 74") is one of the most common RV sizes and is shorter than a regular queen.
• RV kings are usually smaller than standard kings, often 72" wide instead of 76".
• Bunk and twin RV mattresses can be narrower, shorter, or oddly shaped to fit compact layouts.
• Always measure your current mattress and platform instead of relying only on size labels.
• Consider length, width, corner shape, and thickness before choosing a replacement.

Understanding what size RV mattresses actually are for your specific camper helps you match comfort, space, and practicality so sleep on the road feels as natural as possible.