Rank #5 in Best Double Mattress 2026: 10 Ranked, and Where the Spec Sheets Disagree
NIXNAP 10 Inch Hybrid Pocket Spring Mattress, Double
Price and rating as shown on Amazon when we collected them. Both change.
The NIXNAP Double Mattress 4FT6 is number five in this guide, at £110.49. It is a 25 cm (10 inch) hybrid: 3 layers, 9-zone individually pocketed springs under cooling memory foam, an OEKO-TEX certified cover and CertiPUR-US certified foam. NIXNAP lists a maximum weight capacity of 250 kg and a 100-night trial, and asks for at least 72 hours after opening the vacuum pack for the mattress to expand fully. The Amazon rating is 4.6 from 108 ratings.
The listing does not hold to one length for this mattress. The size field says Double (135x190cm) and the item dimensions field says 190L x 135W x 25Th centimetres — both 190 cm — but the item highlight on the same page says 135x200x25 cm. That is 10 cm of extra length in the headline detail that neither of the other two fields allows. Firmness is split the same way: the firmness field reads Medium while the bullet text describes a "medium-firm feel". On weight, this is the heaviest 25 cm mattress in the guide at 28.5 kg; the other 25 cm mattresses here are listed between 23.9 kg and 28.5 kg, which is what a packed pocket-spring hybrid tends to weigh, unlike the Happiland at 10.9 kg. Everything on this page comes from the Amazon listing and its customer reviews — we have not tested the mattress ourselves.
How those 108 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £110.49 |
|---|---|
| Rating | 4.6 out of 5, from 108 Amazon ratings |
| Size field (as listed) | Double (135x190cm) |
| Item dimensions (as listed) | 190L x 135W x 25Th centimetres |
| Item highlight (as listed) | 135x200x25 cm |
| Item weight | 28.5 kg |
| Firmness (as listed) | Medium in the firmness field; "medium-firm feel" in the bullet text |
| Weight capacity maximum | 250 kilograms |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Great mattress, really comfortable!I ordered this mattress via Amazon and I'm pleasantly surprised by how good it is. It offers fantastic support without feeling too hard or too soft. I sleep much better now and wake up with less aches in my back.It arrived neatly rolled and packaged, expanded quickly once unboxed. The quality feels solid for the price. Very happy with my purchase and would recommend it to anyone looking for a new mattress.”
Verified purchase“I'm very pleased with this mattress and find it extremely comfortable.The medium-firm support feels great and helps relieve pressure while sleeping.The memory foam and pocket springs provide a good balance of comfort and support.It arrived well packaged, expanded quickly and had no noticeable issues.A great-quality mattress for the price I would definitely recommend it.”
What it is up against
The rivals it was ranked against in Best Double Mattress 2026: 10 Ranked, and Where the Spec Sheets Disagree.
Questions people ask
What size double is the NIXNAP Double Mattress?
The listing carries two answers. The size field says Double (135x190cm), the item dimensions field says 190L x 135W x 25Th centimetres, and the item highlight says 135x200x25 cm.
How thick is the NIXNAP mattress?
25 centimetres, which the listing also describes as 10 inches.
Is the NIXNAP mattress medium or firm?
The firmness field on the listing says Medium, while the bullet text describes a "medium-firm feel" for everyday support.
Does it need time to expand after delivery?
Yes. NIXNAP says it arrives vacuum-packed and asks for at least 72 hours for full expansion after opening.
Does the NIXNAP mattress come with a trial?
The listing states a 100-night trial, with a further recommendation to allow time for the mattress to settle.
What weight will the NIXNAP mattress take?
The weight capacity field lists a maximum of 250 kilograms.
Comments
Reader comments are not checked against the manufacturer's claims above.
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