Rank #6 in Best Super King Mattress 2026: 10 Ranked, One Claims 2,000 Springs
Doublelife 11 Inch Gel Memory Foam 9-Zone Mattress
Price and rating as shown on Amazon when we collected them. Both change.
The Doublelife Super King Mattress is the number 6 entry in this guide. It is a 180x200x28 cm hybrid — gel memory foam over 9-zone individually pocketed springs — sold at £378.99 with a 4.6 rating from 249 Amazon ratings. The title calls it 11 inch thick, and 11 inches is 27.9 cm, which lines up with the 28 cm given in the spec table rather than fighting it.
What stands out in this ficha is what is missing as much as what is there. The spec table declares 12 layers inside a 28 cm mattress, which works out at roughly 2.3 cm per layer — the same arithmetic the other 12-layer listings in this guide run into. And although the title and bullets lean hard on 9-zone pocket springs, no spring count appears anywhere in the listing, while other hybrids in the set declare 600, 868 or 2,000. Its declared item weight of 28 kg sits inside the 17 kg to 45.2 kg band the other hybrids report, so this one does not join the 17 g and 454 g entries. Everything on this page is taken from the Amazon listing, not from any test we carried out.
How those 249 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 | £378.99 |
|---|---|
| Amazon rating | 4.6 from 249 ratings |
| Declared thickness | 28 cm, listed as 11 inch in the title |
| Number of layers | 12, which works out at about 2.3 cm per layer across a 28 cm mattress |
| Item weight | 28 kg |
| Spring construction | Pocketed coil, 9-zone — no spring count given anywhere in the listing |
| Firmness | Medium Firm |
| Dimensions (as listed) | 200 x 180 x 28 cm; a second dimension field in the same listing reads 2L x 1.8W x 0.28Th metres |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“This is a great Mattress at a great price. Delivered fast, vacuum packed, easy setup. No noticeable *expected) odour from memory foam.Usually new Mattress give me a bad back/neck at first but not this one. I'm very impressed and would definitely recommend.Great Service, Great Price, Great Mattress”
Verified purchase“Bought this mattress for my grandsons bed when he stays at weekends and was amazed by its quality and comfort for the price. I will be ordering a king size for my own bed soon”
What it is up against
The rivals it was ranked against in Best Super King Mattress 2026: 10 Ranked, One Claims 2,000 Springs.
Questions people ask
How thick is the Doublelife Super King Mattress?
The listing gives 28 cm, which is the 11 inch quoted in the title, and the size field reads 180x200x28 cm.
How many springs does it have?
The listing does not say. It describes a 9-zone individually pocketed spring construction but gives no spring count anywhere in the product data.
How many layers does it have?
12, according to the number of layers field — inside a 28 cm mattress that averages about 2.3 cm per layer.
How much does it weigh?
28 kg, according to the item weight field.
How firm is it?
The firmness field describes it as Medium Firm.
Is there a trial period?
Yes. The listing offers a 100-night trial, and says you should contact the seller's service team if you are not satisfied.
Comments
Reader comments are not checked against the manufacturer's claims above.
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