# dosleeps 10 Inch Hybrid Memory Foam Mattress, 4FT6 Double

Source: https://www.ranked10.co.uk/home/best-double-mattresses/dosleeps-double-hybrid-mattress
Ranked #1 in "Best Double Mattress 2026: 10 Ranked, and Where the Spec Sheets Disagree": https://www.ranked10.co.uk/home/best-double-mattresses

- Price: £149.99 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.4 from 3,524 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0FM2XYSMZ?tag=ranked10-21

The dosleeps 4FT6 Double 10 Inch Medium Firm Memory Foam Hybrid Mattress sits at number one in this guide. It is one of two mattresses here priced at £149.99, and the listing credits it with 650 pocketed coils; the other £149.99 mattress declares 350. On paper that pair of numbers separates the two far more clearly than any description of how they feel.

The rest of the dosleeps figures are unusually consistent for this category. The size field says Double (135 x 190 x 25 cm), the item dimensions field says 190 x 135 x 25 centimetres, and the thickness field says 10 inches — the same measurement stated three times, in two units. At 23.9 kg it sits at the bottom of the 23.9–28.5 kg band occupied by the other 25 cm mattresses in this guide. The loose end is a separate 'item depth' field giving 24 centimetres, one short of the 25 cm given twice elsewhere. Note too that the reviews are not all about this 4FT6 double: one describes a single 90 x 190 x 25 cm mattress and another a king size. Everything on this page comes from the Amazon listing, not from a mattress we have tested.

## Specification

| Field | Value |
|---|---|
| Price | £149.99 |
| Customer rating | 4.4 out of 5 from 3,524 ratings |
| Declared coil count | 650 pocketed coils |
| Declared size | Double (135 x 190 x 25 cm) |
| Declared thickness | 10 inches (25 cm) |
| Item weight | 23.9 kg |
| Item depth (as listed) | 24 centimetres |
| Rating breakdown (as listed) | 76 five-star, 11 four-star, 7 one-star entries — 100 entries in total |

## Questions people ask

**How many springs does this mattress have?**

The listing states 650 pocketed coils, each individually wrapped in a fabric pocket as part of what dosleeps calls a 9 Zone Support System. The construction type is given as gel memory foam, 9 Zone pocket spring, hybrid.

**What size is the 4FT6 double?**

The size field reads Double (135 x 190 x 25 cm) and the item dimensions field reads 190 x 135 x 25 centimetres, so the same measurements appear twice in two orders.

**How thick is the dosleeps mattress?**

The size and item dimensions fields both give 25 cm, and the thickness field gives 10 inches, which is the same figure in imperial. A separate 'item depth' field on the same listing says 24 centimetres.

**How much does it weigh?**

The listing gives an item weight of 23.9 kg for the double.

**What is the 4.4 rating based on?**

The headline figure is 4.4 from 3,524 ratings, while the breakdown published with it contains 100 entries — 76 five-star, 11 four-star and 7 one-star. The two numbers are not the same quantity.

**Is there a trial period?**

One of the bullet points mentions a 100-night sleep trial, though the listing does not set out the conditions.