Duvets UK | Single, Double, King & Super King

From light summer nights to the depths of a British winter, the right duvet comes down to two things: the right tog rating and the right size. Browse our full range below, or use the guides underneath to work out exactly what you need.

What tog rating actually means

Tog is a measure of thermal insulation — how much warmth a duvet retains, not how heavy or thick it feels. Lower tog ratings provide less insulation, while higher ratings provide more. Stoftly's current duvet range runs from 4.5 tog to 16 tog, with 16 tog currently our highest-insulation option. The right tog depends on your bedroom conditions and how warm you naturally sleep rather than simply choosing the highest number.

Which tog rating suits which season

As a general guide for a typical UK bedroom:

  • 4.5 tog duvets — suited to warmer summer nights or anyone who naturally sleeps hot year-round
  • 7.5 tog — a middle-ground option for milder spring and autumn nights
  • 10.5 tog duvets — a practical year-round choice for many UK homes, particularly in centrally heated bedrooms
  • 13.5 tog duvets — a warm winter option for colder bedrooms or sleepers who prefer more insulation
  • 15 tog duvets — an extra-warm option for colder winter bedrooms or sleepers who naturally feel the cold
  • 16 tog duvet — the highest-insulation option currently available in the Stoftly range for particularly cold bedrooms or sleepers who prefer extra warmth

If you are comparing the warmest winter options, read our Highest Tog Duvet UK guide for a closer comparison of 13.5, 15 and 16 tog and how much insulation each provides.

Prefer to shop according to the time of year? Browse our summer duvets for warmer nights or explore our winter duvets for colder bedrooms.

These are starting points rather than fixed rules — room temperature, heating habits and how warm you naturally sleep can all affect which tog feels most comfortable. If you regularly wake up too warm or too cold with a 10.5 tog duvet, for example, that may be a sign that a lower or higher tog would suit you better.

Still unsure what tog duvet you need? Read our UK duvet tog guide for a detailed comparison of 4.5, 10.5, 13.5, 15 and 16 tog for summer, winter and year-round use.

Choosing the right size

UK duvet sizes correspond to standard UK bed sizes, although measuring your mattress directly is sensible if you are unsure. Browse our single duvets, double duvets, king size duvets and super king duvets to find the appropriate fit. A duvet that is too small can leave gaps at the edges, while one that is considerably oversized may bunch up during use.

One duvet or a seasonal duvet setup

Some people prefer one mid-range tog duvet for most of the year, while others change between lower-tog and higher-tog duvets as temperatures rise and fall. Stoftly duvets are sold separately rather than as a fixed popper-style combination, allowing you to choose the exact tog ratings that suit your bedroom. Explore our all-season duvet options to compare the available approaches.

FAQ

What does tog mean on a duvet?
Tog measures thermal insulation — essentially how much warmth a duvet holds in. It isn't related to weight or thickness directly, so two duvets can weigh differently but share the same tog rating depending on their filling.
Is 13.5 tog too hot for most of the year?
For a typical UK bedroom, 13.5 tog is generally considered winter-weight and can feel too warm outside the colder months, particularly in centrally heated homes. Many people switch to a lighter tog, such as 4.5 or 10.5, for spring through autumn.
Is 10.5 tog warm enough for winter?
It can be, particularly in a well-heated bedroom, though colder rooms or anyone who feels the cold more may prefer stepping up to 13.5 tog during the coldest months.
What's the difference between 10.5 and 13.5 tog?
The difference is 3 tog of additional warmth, with 13.5 tog suited to colder conditions than 10.5. If you're between the two, your room temperature and how warm you personally sleep are better guides than the numbers alone.
Do I need a different duvet for summer and winter?
Not necessarily, but many people find a lighter tog more comfortable in summer and a heavier one in winter rather than using one rating year-round. An all-seasons duvet is designed specifically to cover both without needing two separate duvets in storage.
What size duvet do I need for my bed?
Duvet sizes correspond to standard UK bed sizes — single, double, king and super king. Measuring your mattress directly is the most reliable way to confirm your size, since manufacturers can vary slightly even within the same named size.