1 / 5Hiimgo Double Memory Foam Mattress, 135 x 190 x 18 cm, Medium Firm
The Hiimgo Double memory foam mattress is listed at 135 x 190 x 18 cm with a medium-firm feel. Its two-layer memory-foam construction includes gel memory foam, while customer feedback is generally positive about comfort and support but mixed on whether the mattress fully expands.
At a glance
- The listed double size is 135 x 190 cm with an 18 cm thickness.
- Two-layer construction combines memory foam and gel memory foam.
- The listing describes the feel as medium firm.
- The mattress is supplied compressed and the listing advises allowing 48-72 hours to expand.
Reference price: £129.99
Price checked: 12 Nov 2026
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Pros and cons
Pros
- Double dimensions and medium-firm feel are clearly stated for buyers matching an existing bed frame.
- The listed foam construction includes gel memory foam, which the manufacturer says is intended to disperse body heat.
- Customer feedback reports comfort and a balance of softness and support.
Technical specifications
12 specifications| Brand | Hiimgo |
|---|---|
| Mattress type | Standard Mattress |
| Construction | Memory Foam, Gel Memory Foam |
| Fill material | Memory Foam |
| Comfort layer material | Gel Memory Foam |
| Number of layers | 2 |
| Firmness | Medium Firm |
| Cover material | Fabric |
| Colour | White |
| Size | Double(135x190x18cm) |
|---|---|
| Dimensions listed | 18 x 135 x 190 centimetres |
| Thickness | 18 Centimetres |
What to know before buying
Listing details to confirm
The listing calls the mattress 18 cm thick and medium firm, but customer feedback includes reports that some units do not reach full size after unpacking. The manufacturer advises allowing 48-72 hours to expand, while customers report expansion within 4 to 5 hours, so the final dimensions and timing are not consistent across the listing and feedback. A removable, washable cover is claimed in the description, while the specification table only identifies the cover material as fabric. Claims of certified safe materials do not identify the certification.
Who is it for?
A good fit for
- Buyers seeking a medium-firm foam mattress in the listed 135 x 190 cm double size.
- People who prefer memory-foam construction and want a stated gel-memory-foam comfort layer.
Less suited to
- Buyers who need a guaranteed exact expanded thickness or a confirmed expansion time.
- Shoppers who require a specified safety certification or independently detailed certification information.

Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
10% 10% - 3 stars
2% 2% - 2 stars
3% 3% - 1 star
7% 7%
Customer feedback highlights comfort, quality, firmness and support, with reports of a balance between softness and support and some customers saying it helps ease back aches. Buyers also describe it as good value, but expansion feedback is mixed, including reports that some units do not reach full size. These perceptions are relevant to a listed 18 cm medium-firm foam mattress, but do not establish that every unit reaches the stated dimensions or produces the same comfort.
Positive themes
- Customers report comfortable support and a balance between softness and firmness.
- Customer feedback describes the mattress as good value.
Negative themes
- Some customers report that the mattress does not reach full size after unpacking.
Mixed feedback
- Expansion experiences differ, with reports of expansion within hours as well as reports that full size is not reached.
Frequently asked questions
What size is this Hiimgo mattress?
The listing gives the size as Double(135x190x18cm) and dimensions as 18 x 135 x 190 centimetres. Check these against your bed frame before ordering.
How firm is the mattress?
It is described as medium firm. Customer feedback also reports a balance between softness and support, though individual comfort preferences can differ.
How long should it take to expand?
The manufacturer advises allowing 48-72 hours after unpacking. Customer feedback mentions expansion within 4 to 5 hours, but also includes reports that some mattresses do not reach full size.
Does it have a removable, washable cover?
The product description claims a removable, washable cover. The specification list only names the cover material as fabric, so confirm the cover details if removability or washing is essential.

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