# MightySoft 10cm Extra Deep Quilted Microfiber Mattress Topper Double

Source: https://www.ranked10.co.uk/home/best-mattress-topper/mightysoft-10cm-extra-deep
Ranked #4 in "Best Mattress Topper 2026: What 10cm Really Means": https://www.ranked10.co.uk/home/best-mattress-topper

- Price: £26.99 (checked on Amazon UK on 2026-09-11)
- Amazon rating: 4.4 from 6,868 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B09JKNP826?tag=ranked10-21

The MightySoft is the third-heaviest topper in this ranking at 3.83kg and the fourth-best seller in Amazon's own mattress topper category, with 6,868 ratings behind it. For £26.99 you get 10cm of quilted microfibre, elastic corner straps and a washable cover, which is the standard recipe at this price.

Its listing is also the best example of how these pages are written. Two of its own bullets argue that the topper will keep you warm — "locks in heat for cozy winter nights" — as though a layer of polyester were a heater, and the same listing says the topper needs 24 to 48 hours to reach full thickness after being vacuum-packed. The 10cm is what it becomes, not what arrives.

## Specification

| Field | Value |
|---|---|
| Stated thickness | 10 cm |
| Item weight as listed | 3.83 kg |
| Price per kg of filling | £7.05 |
| Firmness | Extra plush |
| Fixings | Elastic corner straps |
| Care | Machine wash 40 degrees |

## Questions people ask

**How thick is it when it arrives?**

It is vacuum-packed and the manufacturer says to allow 24 to 48 hours for it to reach the full 10cm. Straight out of the bag it is much flatter.

**Is it warm?**

The listing promotes it partly for warmth, with bullets about locking in heat for winter. If you sleep hot, that is a reason to choose the memory foam toppers above instead.

**Does it hold on to the mattress?**

Yes, it uses elastic corner straps rather than a fitted skirt, and the listing describes it as noiseless.

**Can I machine wash it?**

The cover can be washed at 40 degrees and tumble dried on a low setting.

**How much filling does it have?**

The item weight is listed as 3.83kg, against 1.2kg for the Silentnight Deep Sleep at a similar price — though it is a 10cm deep topper where that one makes no thickness claim.

**How many ratings does it have?**

6,868 at the time of collection, averaging 4.4 stars, with 69 per cent five-star and 4 per cent one-star.