Slumberdown Feels Like Down 10.5 Tog King Size Duvet

The Slumberdown Feels Like Down is the king size entry at number four in this guide: a 10.5 tog duvet at 225 x 220cm, listed at £21.40 with a 4.6 rating from 3,330 reviews. Because every duvet in this guide carries the same 10.5 tog, that number cannot separate them — size and the honesty of each listing have to do the work instead. This listing is the one that puts the weight figures side by side: Slumberdown gives 2.5 kg here, and another Slumberdown 10.5 tog king size in this same guide is also listed at 2.5 kg. That is hard to square with the 1 kg given for a Slumberdown 10.5 tog double elsewhere in the list, when a king has only about 24% more surface area (49,500 cm² against 40,000 cm²).

Its own listing is not perfectly tidy either. The Fabric Warmth Description field says Heavyweight, while the second bullet calls it "our lightweight duvet". The Seasons field lists All, Fall, Spring and Summer, while the first bullet calls it a "summer duvet" that is also balanced for spring, autumn and winter. Neither point is a fault you could see through the packaging — both are things the listing says about itself. Everything on this page comes from the Amazon listing; we have not tested this duvet.