1 / 7Com4Rest K4-8T Twin 8-Inch Hybrid Memory Foam Mattress
The Com4Rest K4-8T is an 8-inch Twin mattress combining memory foam with pocket coils. Its listed medium feel, boxed delivery and compatibility with several bed bases make it a compact hybrid option, though the claimed height and listed dimensions do not align exactly.
At a glance
- Combines pocket springs with multiple layers of memory foam, according to the listing.
- The listing describes a medium feel and a Euro Top.
- Designed to arrive compressed and rolled in a box. The listed expansion time is 48–72 hours.
- Listed for box springs, slatted bases and solid foundations.
Reference price: $129.99
Price checked: Nov 14, 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Hybrid foam-and-pocket-coil construction offers an alternative to an all-foam mattress.
- The listed base compatibility covers several common foundation types.
- Customer feedback reports positive impressions of comfort and quality, though the review pool is limited.
Cons
- At 8 inches thick, it is a relatively low-profile option compared with thicker mattress designs.
Technical specifications
17 specifications| Brand | Com4Rest |
|---|---|
| Model | K4-8T |
| Size | Twin |
| Construction | Hybrid |
| Firmness | Medium |
| Top style | Euro Top |
| Dimensions listed | 190 x 97 x 20 centimetres |
|---|---|
| Thickness listed | 8 inches |
| Compatible bases listed | Box Spring, Slatted Base, Solid Foundation |
| Delivery format | Compressed, rolled, and boxed |
| Expansion time stated | 48–72 hours |
| Material listed | Memory Foam |
|---|---|
| Comfort layer materials | Comfort Foam, Memory foam |
| Coil type | Pocketed Coil |
| Special features listed | Breathable, Durable, Low Motion Transfer, Pressure Relief |
| Care instructions | Hand Wash Only |
| Colour | Black |
What to know before buying
Listing details to confirm
The listing is inconsistent about height: the title and thickness field say 8 inches, while dimensions are listed as 190 x 97 x 20 centimetres. Confirm the intended finished thickness and dimensions for your bed before buying. The listing also describes the feel as both “Medium” and “medium-firm,” so firmness is not stated consistently. Allow 48–72 hours for expansion after unboxing.
Who is it for?
A good fit for
- Shoppers seeking a Twin hybrid mattress with memory foam and pocket coils.
- Buyers who need a lower-profile mattress for a compatible box spring, slatted base or solid foundation.
- People who prefer boxed delivery and can allow time for the mattress to expand.
Less suited to
- Buyers who need a precisely confirmed mattress height or dimensions without checking the listing discrepancy first.
- Shoppers seeking a clearly specified firm or plush feel.

Customer reviews on Amazon
- 5 stars
90% 90% - 4 stars
0% 0% - 3 stars
10% 10% - 2 stars
0% 0% - 1 star
0% 0%
Customer feedback describes the mattress as comfortable and reports positive impressions of its quality, with some customers pleasantly surprised by the comfort for the price. That may be useful context for shoppers considering the listed foam-and-pocket-coil construction, but the feedback does not establish how it will feel for a particular sleeper. The rating pattern is largely five-star with some three-star ratings, from a small number of ratings.
Positive themes
- Customer feedback describes comfort and quality positively.
Frequently asked questions
What is the listed height of the Com4Rest K4-8T?
The title and thickness specification say 8 inches, but another dimensions field gives 20 centimetres for thickness. Check the selected listing to confirm the finished height.
What does the mattress contain?
The listing describes memory foam layers combined with individually wrapped pocket coils.
How long should it take to expand after unboxing?
The listing says to allow 48–72 hours for full expansion.
Which bed bases are listed as compatible?
The specifications name box springs, slatted bases and solid foundations. A feature description also mentions other setups, so confirm compatibility with your specific frame.

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