# Slumberdown Cosy Nights 10.5 Tog Double Duvet

Source: https://www.ranked10.co.uk/home/best-10-5-tog-duvets/slumberdown-cosy-nights-double-duvet
Ranked #3 in "Best 10.5 Tog Duvet 2026: 10 Ranked, Two Listings Contradict Themselves": https://www.ranked10.co.uk/home/best-10-5-tog-duvets

- Price: £17.09 (checked on Amazon UK on 2026-09-18)
- Amazon rating: 4.6 from 9,737 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B07CP1BHXM?tag=ranked10-21

The Slumberdown Cosy Nights is a 10.5 tog double duvet, 200 x 200cm, with a microfibre cover over hollowfibre filling. It sits at number three in this guide, priced at £17.09, with a 4.6 rating from 9,737 Amazon ratings.

Every duvet in this guide carries the same 10.5 tog, so the number that ought to tell you how warm a duvet is tells you nothing here. The Cosy Nights listing does add a weight of its own: 1 kg for the 200 x 200cm double. Elsewhere in the same guide, Slumberdown's 10.5 tog king size is declared at 2.5 kg. A king is roughly 24% larger in area than a double — 49,500 cm² against 40,000 cm² — so that gap is far wider than the size difference can explain, and the two figures cannot both be describing the same thing. The listing also gives an item thickness of 2 centimetres and dimensions of "2L x 2W metres", both worth reading with the same caution. Everything on this page comes from the Amazon listing, not from any test of ours.

## Specification

| Field | Value |
|---|---|
| Price | £17.09 |
| Rating | 4.6 out of 5 from 9,737 ratings |
| Size | Double Bed (200 x 200cm) |
| Tog | 10.5 |
| Item Weight | 1 kg (as listed) |
| Item Thickness | 2 Centimetres (as listed) |
| Item Dimensions L x W | 2L x 2W metres (as listed) |
| Filling | Hollowfibre, with a microfibre cover |

## Questions people ask

**What size is the Slumberdown Cosy Nights duvet?**

The listing describes it as a double bed duvet measuring 200 x 200cm, suitable for bedrooms, rentals, guest rooms and campervans.

**How much does the Slumberdown Cosy Nights double duvet weigh?**

The listing states an item weight of 1 kg for the 200 x 200cm double. The same brand's 10.5 tog king size duvet, listed elsewhere in this guide, is declared at 2.5 kg.

**What tog is it, and when can I use it?**

It is a 10.5 tog duvet, which Slumberdown describes as balanced for all year-round use in spring, summer, autumn and winter.

**Is the Slumberdown Cosy Nights duvet machine washable?**

Yes — the product care instructions list machine wash, and Slumberdown adds a 2-year quality guarantee.

**Is it suitable for allergy sufferers?**

The listing says it is non-allergenic, containing no materials likely to cause allergies, and lists hypoallergenic among its special features.

**How is the Slumberdown Cosy Nights duvet rated on Amazon?**

4.6 out of 5 from 9,737 ratings. In the rating breakdown shown on the listing, 76 of the 100 ratings are five-star and 16 are four-star.