How firm is this mattress?

It is sold as medium firm, so it sits on the firmer side of foam beds. Back and stomach sleepers usually like it; side sleepers who want a soft sink-in feel may find it too firm.

Does the gel foam actually sleep cool?

The green tea gel is designed to draw heat away, and it helps compared with plain memory foam. It is still an all-foam bed, so hot sleepers may want a breathable cover or a cooling topper.

How long does it take to expand after unboxing?

Boxed foam mattresses usually take a day or two to reach full height. Sleep on it after it has fully expanded, and give it a few days of airing out if there is a new-foam smell.

Is it good for couples?

The foam isolates motion well, so a partner's movement is less noticeable. It comes in twin size here, so check that the size fits your bed frame before ordering.

Does it need a box spring?

No. A foam mattress works on a slatted frame, a platform bed or a solid base. A box spring is optional and mainly adds height.

Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box

Best price now

$153.99at WayfairChecked 13 h ago

Prices are checked against each store and labelled with when.

Visit Wayfair

Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box

Best price now

$153.99at 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: $153.99 at Wayfair (checked Nov 11, 2026).

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

This is a twin-size gel memory foam mattress from Rebrilliant, sold compressed in a box and rated medium firm. The green tea gel infusion is meant to pull heat away from the body, and the foam layers target pressure relief and motion isolation. It suits a guest room, a kid's room or a first apartment where a simple foam bed is enough. Against big-name boxed mattresses it is a basic single-density foam build with no zoned support or coil layer, so heavier sleepers and couples who want bounce should look at hybrids instead.

Best forGuest and spare bedroomsKids' and teens' roomsBack and side sleepers who like a firmer foam feelShoppers who want a simple unbox-and-inflate setup

Pros

Medium firm feel gives firmer support than soft all-foam beds
Gel infusion is designed to sleep cooler than plain memory foam
Foam absorbs movement, so a restless partner is less disruptive
Ships compressed in a box and expands after unboxing
Twin size fits tight rooms and bunk setups

Cons

Only a handful of owner ratings, so long-term durability is unproven
Single firmness level with no soft or firm options
All-foam build can feel warm for hot sleepers over a full night
No coils or edge support, so the perimeter feels soft
Off-gassing smell is common with boxed foam and needs airing out

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

WayfairNew
In stock
$153.99Checked 13 h ago
Visit Wayfair

Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box price history

Lowest price we've seen: $153.99 on Nov 11 at Wayfair. Tracked across 1 store since Nov 11.

What reviewers say

Feedback is very limited, with only two ratings, both five stars. Those buyers describe it as comfortable and supportive. There is not enough owner feedback yet to judge how it holds up over years.

What people mention

ComfortPraisedThe few owners who rated it call the medium firm feel comfortable and supportive.
SupportPraisedBuyers mention good spinal support and pressure relief.

From Wayfair

Medium firm gel memory foam mattress in a box
Green tea gel memory foam
Pressure relief
Motion isolation
Spinal support for refreshing deep sleep

Sizes: Twin
Sizing: Page shows a 6" thickness in Twin size; other thickness and size options are listed under "See all options"

About the Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box

This is a medium firm gel memory foam mattress that ships in a box. The foam layer is infused with green tea gel.

The mattress is designed to relieve pressure, isolate motion and support the spine.

Type: Gel memory foam
Firmness: Medium firm
Size: Twin
Thickness: 6 inches (Twin size)
Foam: Green tea gel memory foam
Packaging: Mattress 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

How firm is this mattress?: It is sold as medium firm, so it sits on the firmer side of foam beds. Back and stomach sleepers usually like it; side sleepers who want a soft sink-in feel may find it too firm.
Does the gel foam actually sleep cool?: The green tea gel is designed to draw heat away, and it helps compared with plain memory foam. It is still an all-foam bed, so hot sleepers may want a breathable cover or a cooling topper.
How long does it take to expand after unboxing?: Boxed foam mattresses usually take a day or two to reach full height. Sleep on it after it has fully expanded, and give it a few days of airing out if there is a new-foam smell.
Is it good for couples?: The foam isolates motion well, so a partner's movement is less noticeable. It comes in twin size here, so check that the size fits your bed frame before ordering.
Does it need a box spring?: No. A foam mattress works on a slatted frame, a platform bed or a solid base. A box spring is optional and mainly adds height.
Where is the Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box cheapest?: At Wayfair, for $153.99, as of our latest check.
What do buyers say about the Rebrilliant Medium Firm Gel Memory Foam Mattress in a Box?: Buyers like: Rated 5 out of 5 stars from 2 reviews.