Build Your Perfect Fit
Design the perfect mattress for your RV
Choose Your Mattress
—Select the perfect mattress for your RV lifestyle
Enter Your Size
Measure your RV bed frame and enter exact dimensions
Quick Select Common Size
Click to auto-fill dimensions
Customize Corners
Most RVs have standard corners. Need custom cuts?
Standard Rectangular Shape
Perfect for most RV beds with square corners.
Hinge Options
Add a hinge for easier storage access under your RV bed
Many RV platforms have different heights. Choose if the hinged section should be thicker to accommodate a lower platform.
Review Your Order
Double-check your custom mattress configuration
📋 Order Summary
How to Use the Custom Builder
Building your perfect RV mattress is easy — just follow these 5 simple steps. Tap any step for more detail.
Pick from 4 mattress types. Each one shows a description and selling points to help you decide.
More info on choosing
- Montana Hybrid™ — Our best seller. Pocketed coils + cooling gel foam. Available in Firm, Plush, or Soft.
- Aspen™ — All-foam, great for couples who don't want to feel each other move.
- Canyon™ — Firm support at the best price. Great for back sleepers.
- Dream Bunk™ — Thin, lightweight, perfect for bunk beds and tight spaces.
Type in your exact width and length in inches, or tap a quick-select preset.
How do I measure my RV bed?
- Remove your old mattress completely
- Measure the platform frame (not the old mattress)
- Measure width — edge to edge
- Measure length — headboard to foot
If your bed platform has square corners, just select "Standard" and continue.
What if my corners aren't square?
- Select "Custom"
- Choose the corner type for each corner (top-left, top-right, bottom-left, bottom-right)
- Enter the X (width) and Y (depth) measurements in inches
Most beds don't need a hinge. Select "No Hinge" and continue if you're unsure.
When do I need a hinge?
- Your mattress needs to fold up to access storage underneath
- Your RV has a slide-in mechanism that requires the mattress to fold
- You have a camper van with limited space where the bed folds away
Check your order summary, see your total savings, and add to cart.
What happens after I order?
- Your mattress is handcrafted to your exact specs in South Carolina
- Ships compressed in a box — fits through any RV door
- Free shipping to the continental US
- Arrives in approximately 5-7 business days
- Backed by our 10-year warranty
How to Measure Your RV Platform
How to Measure Custom Corners
How to Position Your Hinge
Montana Hybrid™
Sleep Like You're Home, Wherever You Roam
Handcrafted with premium materials for the ultimate RV sleep experience.
Why RVers Choose Montana
Premium Layer Technology
Why Hybrid Beats Foam
Unlike memory foam mattresses that trap heat and create a "stuck" feeling, our hybrid construction combines responsive coils with premium foam.
Ready to Sleep Better?
Join 70,000+ adventurers who've upgraded their RV sleep.