# Hybrid Double Mattress Extra Firm 4ft6, 25cm, 29kg

Source: https://www.ranked10.co.uk/home/best-mattress-for-side-sleepers/matoresu-025
Ranked #7 in "Best Mattress for Side Sleepers 2026: Two Say Extra Firm": https://www.ranked10.co.uk/home/best-mattress-for-side-sleepers

- Price: £149.99 (checked on Amazon UK on 2026-09-13)
- Amazon rating: 4.3 from 418 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0FVRVTHDN?tag=ranked10-21

This extra firm hybrid double costs £149.99 and is rated 4.3 stars from 418 ratings, with a twenty-five centimetre profile and a twenty-nine kilogram body.

It takes seventh because it is one of only two mattresses here that say extra firm — while its thickness field reads zero point two five centimetres, which is a metric conversion that changed the unit and left the number behind.

## Specification

| Field | Value |
|---|---|
| Thickness field | 0.25 centimetres |
| Depth | 25 centimetres, in two other fields |
| Firmness | Extra firm, in the title |
| Fill | Innerspring hybrid memory foam |
| Weight | 29 kilograms |
| Ratings | 4.3 from 418, shared with another listing |

## Questions people ask

**Is it a quarter of a centimetre thick?**

No: 25 centimetres. The field converted the unit and not the number.

**Is it firm?**

It states extra firm in the title.

**What is inside it?**

Memory foam over a hybrid innerspring.

**Why does it share 418 ratings?**

Because the kingsize listing above is a variant of the same product.

**Why is it seventh?**

Because it is honestly firm and dishonestly measured.

**How many ratings does it have?**

418 at the time of collection, averaging 4.3 stars, with 73 per cent five-star and 9 per cent one-star.