# Slumberdown Climate Control King Size 4.5 Tog Duvet

Source: https://www.ranked10.co.uk/home/best-4-5-tog-duvets/slumberdown-climate-control-king-duvet
Ranked #5 in "Best 4.5 Tog Duvet 2026: 10 Ranked, and Why 'Heavyweight' Means 4.5 Tog": https://www.ranked10.co.uk/home/best-4-5-tog-duvets

- Price: £18.95 (checked on Amazon UK on 2026-09-18)
- Amazon rating: 4.6 from 4,309 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B06XG6ZC1W?tag=ranked10-21

The Slumberdown Climate Control king size duvet sits at number five in this guide. It costs £18.95 and carries a 4.6 out of 5 rating from 4,309 ratings. It is sold squarely as a summer quilt: the bullets promise breathable temperate fibres that prevent overheating and keep you cool on hot nights, and the spec table lists its seasons as spring and summer.

What the same listing never supplies is a fill weight. Hollowfibre is named, no gram figure appears anywhere in the bullets or the spec table, so the cooling claim has nothing measurable behind it — this is the entry in the guide that does not even offer a weight to argue about. The other number sits awkwardly next to the pitch: the rating spread shown alongside the 4.6 reads 74 five-star, 18 four-star, 5 three-star, 1 two-star and 2 one-star, which adds to 100, and the buyers inside it describe a duvet that is warm and cosy without feeling too heavy, one calling it perfect for the colder months. Everything on this page comes from the Amazon listing, not from any testing we have done.

## Specification

| Field | Value |
|---|---|
| Price | £18.95 |
| Rating | 4.6 out of 5 from 4,309 ratings |
| Rating split (as listed) | 74 five-star, 18 four-star, 5 three-star, 1 two-star, 2 one-star — adds to 100 |
| Size | King size, 225 x 220cm |
| Filling material (as listed) | Polyester hollowfibre — no fill weight given anywhere in the listing |
| Seasons (as listed) | Spring, Summer |
| Care | Machine washable at 40°C, tumble dryer friendly |
| Guarantee | 2-year quality guarantee |

## Questions people ask

**How much filling does the Slumberdown Climate Control king duvet contain?**

The listing gives no figure. It says the filling is non-allergenic polyester hollowfibre, but it never states how many grams of it are inside the 225 x 220cm king quilt.

**Does the Slumberdown Climate Control duvet keep you cool in summer?**

The listing claims breathable temperate fibres that prevent overheating on hot summer nights, and its spec table lists the seasons as spring and summer only. It gives no fill weight, so there is no figure in the listing against which to check that claim.

**What size is this Slumberdown duvet?**

King size, 225 x 220cm. The measurement is given in both the product title and the fifth bullet.

**Can the Slumberdown Climate Control duvet be machine washed?**

Yes. The listing states the quilts are machine washable at 40°C and tumble dryer friendly, so it can go back on the bed quickly.

**Is it suitable for allergy sufferers?**

The listing describes the filling as non-allergenic hollowfibre, free from materials likely to trigger allergies, and lists hypoallergenic among the special features. It does not give a certification or testing standard.

**Where is the Slumberdown Climate Control duvet made?**

The listing says it is made in the UK with high quality materials and is backed by a 2-year quality guarantee, under a bullet headed British Craftsmanship.