# Doublelife King Size Mattress 5FT, 11 Inch Gel Memory Foam, 9 Zone

Source: https://www.ranked10.co.uk/home/best-mattress-for-side-sleepers/doublelife-27-28
Ranked #5 in "Best Mattress for Side Sleepers 2026: Two Say Extra Firm": https://www.ranked10.co.uk/home/best-mattress-for-side-sleepers

- Price: £189.99 (checked on Amazon UK on 2026-09-13)
- Amazon rating: 4.7 from 250 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0F4XJNJ8D?tag=ranked10-21

The Doublelife king size mattress costs £189.99 and is rated 4.7 stars from 250 ratings, with nine zones, gel memory foam and an eleven inch profile.

It takes fifth because its record is strong and its thickness is not settled: twenty-seven centimetres in one field, twenty-eight in the next, and eleven inches — 27.9 — in its name.

## Specification

| Field | Value |
|---|---|
| Depth | 27cm in one field, 28cm in the next |
| Ratings | 4.7 from 250 |
| Support | Nine pocket spring zones |
| Construction | Gel memory foam over springs |
| Weight | 28.5 kg |
| Layers | 12 |

## Questions people ask

**How deep is it?**

The fields say 27 and 28; the name says eleven inches, which is 27.9.

**Is it firm?**

Medium firm is the phrase used across this market; this page relies on nine zones.

**How is it rated?**

4.7 stars from 250 buyers.

**Does it have springs?**

Yes, nine zones of pockets.

**Why is it fifth?**

Because the record is good and the depth is a coin toss between two fields.

**How many ratings does it have?**

250 at the time of collection, averaging 4.7 stars, with 87 per cent five-star and 3 per cent one-star.