Generic illustration · not a product photograph

Foam Royal

Name: The Beloit Mattress Company Foam Royal
Brand: The Beloit Mattress Company

Best for: Thin foam for bunks and RVs

4.75″ all-foam mattress, stocked as an RV Queen and built to custom RV shapes by quote.

Good to know: 1-year warranty, outside the comfort policy, and very thin for nightly adult use.

Type: Foam
Height: 4.75″
Sizes: Made to order + custom

Made to your measurements · 4.75″

Where to get it

beloitmattress.comQueen $370 · checked Oct 18 Get a quote

Returns: No returns (all mattress sales final); 365-Night Comfort Assurance does not cover the Basics collection (guarantee page); all mattress sales final Details

We may earn a commission if you buy. Check the price for your exact size and height on the seller’s site.

The short version

Worth a look if

Thin foam for bunks and RVs

Good

4.75″ all-foam mattress, stocked as an RV Queen and built to custom RV shapes by quote.
Trial: No returns (all mattress sales final); 365-Night Comfort Assurance does not cover the Basics collection (guarantee page); all mattress sales final
Height: 4.75″
Sizes: Twin, Twin XL, Full, Queen, RV Queen, RV Twin, RV Full, RV King

Think about

1-year warranty, outside the comfort policy, and very thin for nightly adult use.
No owner reviews we could verify yet

Based on the maker’s published specs and terms, and the owner reviews linked below. We haven’t slept on it. Something wrong? Tell us.

What owners say

No owner reviews we can verify yet A small set of real reviews, each linked to its source. Not a star rating.

No independent owner feedback naming this model was found.

What people liked

No supported praise summary in the sample.

What to weigh up

No substantive concern verified in this small sample. This is a gap in the evidence, not proof of no drawbacks.

Sources & sample limits

None for this model Sample: 0 owner reports.

Searches of Reddit, RV and boat forums found no posts naming this model. Star ratings on beloitmattress.com are brand-hosted and not used. See brand-level owners note.

Research checked October 14, 2026. These are sourced observations, not our own product tests or a star rating.

Every size it comes in

Made around your measurements. The maker confirms width, length, height and any cut corners before building it.

How it compares

Beside the most similar mattresses from other brands.

	Foam RoyalThe Beloit Mattress Company	6″ Foam RV MattressArizona Premium Mattress	The LogyCustomMattress.com	Rest Easy Plush RV MattressDenver Mattress
Type	Foam	Foam	Foam	Foam
Queen price	$370	$395	$425	$450
Height	4.75″	7″	5″ or 6″ or 7″ or 8″ or 9″ or 10″ or 11″ or 12″	5″
Trial	365 nights	See terms	See terms	365 nights
Odd sizes	None	1	10	1
Expert reviews	None yet	None yet	None yet	None yet

What’s inside

1Knit Cover
20.6 oz. per sq. ft. Cotton-Rayon Blend
3¾ Inch of 1.2 lb. 28 ILD Foam
4No Separate Transition Layer
54 Inches of 1.2 lb. 32 ILD Base Foam

Feel: Medium-firm
Height: 4.75″
Custom sizes: Yes, the maker builds to your measurements

Returns and ordering

Trial and returns

No returns (all mattress sales final); 365-Night Comfort Assurance does not cover the Basics collection (guarantee page); all mattress sales final

Before you order

Measure inside the frame, not the old mattress
Check clearance above for the height you pick
Make sure your base supports it
Buy sheets in the same exact size

Questions

What is it made of?

Low-profile, single-sided all-foam bed: knit cover and cotton-rayon over ¾″ of 1.2 lb foam on a 4″ 32-ILD base foam. Beloit calls it its most budget-friendly RV mattress, for bunks, daybeds and RVs; stocked in RV Queen.

How firm is it?

Medium-firm That’s the maker’s description; we haven’t measured it.

Which sizes and heights can I get?

It’s made to your measurements. Confirm your exact size and height with the seller.

Are the reviews about this exact mattress?

No owner reviews we can verify yet. Searches of Reddit, RV and boat forums found no posts naming this model. Star ratings on beloitmattress.com are brand-hosted and not used. See brand-level owners note.

Where did this information come from?

Checked 2026-10-18. Specs and terms can change.