Is medium firm right for side sleepers?

Medium firm works for many side sleepers, but lighter sleepers may want more cushioning at the shoulder and hip. Heavier sleepers may find it too soft over time.

Does the gel foam sleep cool?

Gel infusion helps compared with plain memory foam, but it is still foam and can trap heat. A breathable cover and a cooler room help more.

How long until it fully expands?

Most foam mattresses in a box reach full shape within 24 to 72 hours. Sleep on it sooner if needed, but expect it to keep rising.

Will it fit a standard bunk bed?

A twin fits standard twin bunk frames. Check your bunk's weight limit and rail height, since foam mattresses can be thicker than innerspring ones.

Does it need a box spring?

No. A slatted frame, platform bed or bunk base works; a box spring is optional. Use a solid, flat support to avoid sagging.

Is the cover removable?

The cover is washable. Check the care label before washing, and unzip it only once the mattress is fully expanded.

What do buyers say about the Medium Firm Gel Memory Foam Mattress in a Box?

Buyers like: Rated 5 out of 5 stars from 2 reviews.

Medium Firm Gel Memory Foam Mattress in a Box

Best price now

$144.99at WayfairChecked 13 h ago

Prices are checked against each store and labelled with when.

Visit Wayfair

Medium Firm Gel Memory Foam Mattress in a Box

Best price now

$144.99at WayfairChecked 13 h ago

Prices are checked against each store and labelled with when.

Visit Wayfair

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $144.99 at Wayfair (checked Nov 11, 2026).

Our take on the Medium Firm Gel Memory Foam Mattress in a Box

This is a medium-firm gel memory foam mattress sold compressed in a box, aimed at bunk beds, guest rooms and small bedrooms. The gel-infused foam is meant to sleep cooler than plain memory foam, and the cover is breathable and washable. It carries CertiPUR-US and OEKO-TEX certifications, which cover foam emissions and textile safety. Against spring and hybrid rivals it isolates motion better and sets up faster, but it offers less bounce and edge support.

Best forBunk beds and kids' roomsGuest rooms and spare bedroomsSide and back sleepers who want medium firmShoppers avoiding springs and squeaks

Pros

Medium-firm feel suits most sleepers
Gel infusion helps with heat buildup
Motion isolation for shared beds
Washable breathable cover
CertiPUR-US and OEKO-TEX certified
Ships compressed in a box, easy to carry upstairs

Cons

Thin edge support, so sitting on the side sinks
Less bounce and pushback than a hybrid
Foam needs time to fully expand after unboxing
Twin size limits it to one sleeper

Medium Firm Gel Memory Foam Mattress in a Box prices at every store

WayfairNew
In stock
$144.99Checked 13 h ago
Visit Wayfair

Medium Firm Gel Memory Foam Mattress in a Box price history

Lowest price we've seen: $144.99 on Nov 11 at Wayfair. Tracked across 1 store since Nov 11.

What reviewers say

Feedback is very limited, with only a couple of ratings, both top marks. Buyers describe it as comfortable and good value for a bunk or spare bed.

What people mention

ComfortPraisedBuyers describe the medium-firm feel as comfortable for sleeping.
ValuePraisedOwners see it as a sensible buy for a bunk or guest bed.

From Wayfair

Medium firm gel memory foam mattress
Breathable washable cover
Designed for bunk beds
Pressure relief
Motion isolation
CertiPUR-US and OEKO-TEX certified

Sizes: Twin
Sizing: Page shows Mattress Thickness: 6 and Mattress Size: Twin; other thickness and size options are listed under "See all options"
Shipping: FREE Fast Delivery, get it by Sun, Nov 15

About the Medium Firm Gel Memory Foam Mattress in a Box

This is a medium firm gel memory foam mattress that ships in a box. It is designed for bunk beds and comes in a twin size with a 6-inch thickness.

The foam is built for pressure relief and motion isolation. The cover is breathable and washable. The mattress is CertiPUR-US and OEKO-TEX certified.

Type: Gel memory foam
Firmness: Medium firm
Size: Twin
Thickness: 6 inches
Cover: Breathable, washable
Designed for: Bunk beds
Certifications: CertiPUR-US, OEKO-TEX
Packaging: Shipped in a box

What buyers say

Buyers like

Rated 5 out of 5 stars from 2 reviews

Specifications

Size: Twin
Type: Gel Memory Foam

Questions and answers

Is medium firm right for side sleepers?: Medium firm works for many side sleepers, but lighter sleepers may want more cushioning at the shoulder and hip. Heavier sleepers may find it too soft over time.
Does the gel foam sleep cool?: Gel infusion helps compared with plain memory foam, but it is still foam and can trap heat. A breathable cover and a cooler room help more.
How long until it fully expands?: Most foam mattresses in a box reach full shape within 24 to 72 hours. Sleep on it sooner if needed, but expect it to keep rising.
Will it fit a standard bunk bed?: A twin fits standard twin bunk frames. Check your bunk's weight limit and rail height, since foam mattresses can be thicker than innerspring ones.
Does it need a box spring?: No. A slatted frame, platform bed or bunk base works; a box spring is optional. Use a solid, flat support to avoid sagging.
Is the cover removable?: The cover is washable. Check the care label before washing, and unzip it only once the mattress is fully expanded.
Where is the Medium Firm Gel Memory Foam Mattress in a Box cheapest?: At Wayfair, for $144.99, as of our latest check.
What do buyers say about the Medium Firm Gel Memory Foam Mattress in a Box?: Buyers like: Rated 5 out of 5 stars from 2 reviews.

Stores we've priced the Medium Firm Gel Memory Foam Mattress in a Box at

Wayfair deals and prices

Stores we've priced the Medium Firm Gel Memory Foam Mattress in a Box at

Wayfair deals and prices