Generic illustration · not a product photograph

10″ Luxury Cool-Max Gel Foam Round Mattress

Name: Mattress Insider 10″ Luxury Cool-Max Gel Foam Round Mattress
Brand: Mattress Insider

Best for: Round beds

A 10″ gel memory foam round mattress in six diameters, 76″ to 99″.

Good to know: Other diameters by phone; return terms for this item aren't stated.

Type: Memory foam
Height: 10″
Sizes: Made to order + custom
Certified: CertiPUR-US

Made to your measurements · 10″

Where to get it

mattressinsider.comOrder online · delivered to you Get a quote

Returns: Not stated on the product page (site-wide policy: 365-night guarantee on most products; custom orders excluded) 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

Round beds

Good

A 10″ gel memory foam round mattress in six diameters, 76″ to 99″.
Trial: Not stated on the product page (site-wide policy: 365-night guarantee on most products; custom orders excluded)
A buyer said it fit their roughly 60-year-old round bed frame exactly and was very comfortable.
Height: 10″

Think about

Other diameters by phone; return terms for this item aren't stated.

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

From reviews on the seller’s site A small set of real reviews, each linked to its source. Not a star rating.

Small sample · 2 owner reports

Only two old brand-hosted reviews were found; both buyers were happy with comfort and fit on their round beds.

What people liked

A buyer said it fit their roughly 60-year-old round bed frame exactly and was very comfortable. Source ↗

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

2 reviews on the brand's own round mattress page, 2013 and 2016 Sample: 2 owner reports.

Only the seller's own reviews (Yotpo widget on mattressinsider.com) were found. They are self-selected and cannot be checked; no independent owner posts naming this model turned up in web searches of Reddit and RV forums (iRV2, Thor and Forest River forums blocked automated reading). Both reviews are old.

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.

Price for every size

From the maker’s site on Oct 24, 2026. Prices change often, so check before you buy.

Size	Inches	Price
76" round (10" thick)	76 × 76	$1,399 sale	See it
80" round (10" thick)	80 × 80	$1,449 sale	See it
84" round (10" thick)	84 × 84	$1,449 sale	See it
87" round (10" thick)	87 × 87	$1,499 sale	See it
96" round (10" thick)	96 × 96	$1,599 sale	See it
99" round (10" thick)	99 × 99	$1,649 sale	See it

How it compares

Beside the most similar mattresses from other brands.

	10″ Luxury Cool-Max Gel Foam Round MattressMattress Insider	The Grand RoyaleAlaskan King Bed Company	The OriginalAlaskan King Bed Company	The RoyaleAlaskan King Bed Company
Type	Memory foam	Foam	Foam	Foam
Queen price	—	$11,000	$3,800	$4,400
Height	10″	15″	11″	12″
Trial	365 nights	See terms	See terms	See terms
Odd sizes	None	1	1	1
Expert reviews	None yet	None yet	None yet	None yet

What’s inside

1Quilted Cool-Max fabric layer
21″ 4 lb gel memory foam
32″ soy transition memory foam
41.5″ cradle air-flow foam
55.25″ heavy-duty support foam

Feel: Not published
Height: 10″
Custom sizes: Yes, the maker builds to your measurements

Returns and ordering

Trial and returns

Not stated on the product page (site-wide policy: 365-night guarantee on most products; custom orders excluded)

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?

10″ round memory foam mattress: quilted Cool-Max fabric over 1″ 4 lb gel memory foam, 2″ soy transition memory foam, 1.5″ air-flow foam and 5.25″ support foam.

How firm is it?

Not published 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?

From reviews on the seller’s site. Only the seller's own reviews (Yotpo widget on mattressinsider.com) were found. They are self-selected and cannot be checked; no independent owner posts naming this model turned up in web searches of Reddit and RV forums (iRV2, Thor and Forest River forums blocked automated reading). Both reviews are old.

Where did this information come from?