# Doublelife 11 Inch Gel Memory Foam 9-Zone Mattress

Source: https://www.ranked10.co.uk/home/best-super-king-mattresses/doublelife-super-king-mattress
Ranked #6 in "Best Super King Mattress 2026: 10 Ranked, One Claims 2,000 Springs": https://www.ranked10.co.uk/home/best-super-king-mattresses

- Price: £378.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.6 from 249 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0GF82SYSJ?tag=ranked10-21

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.

## Specification

| Field | Value |
|---|---|
| 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 |

## 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.