Best duvets for summer and winter
Most British homes are warmer at night than the duvet market assumes, and 13.5 tog is a habit rather than a requirement.
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Tog measures thermal resistance, not warmth. It tells you how well the duvet stops heat leaving you, and it says nothing about how heavy the duvet is or how well it breathes.
The 13.5 tog winter duvet is a convention from poorly insulated housing. Modern homes with better insulation and heating frequently never drop far enough at night to need one, which is why so many people wake up hot and blame the mattress.
Seven to 10.5 tog is the useful range for most UK bedrooms year round. If you wake up hot, change this before you change anything expensive.
The picks
The pick, if you want one answer
Simba Hybrid 3-in-1 Duvet, 7.8 / 10. Three warmth levels from one purchase, and the two halves can be used separately, which covers a British year properly.
| Product | Best for | From | Score |
|---|---|---|---|
| Simba Hybrid 3-in-1 Duvet | Best all year | Mid range | 7.8 / 10 |
| Scooms | Best quality down | Premium | 8.0 / 10 |
| Panda Cloud Bamboo Duvet | Best for hot sleepers | Mid range | 7.4 / 10 |
| Night Lark | Best practical choice | Budget to mid | 7.6 / 10 |
Simba Hybrid 3-in-1 Duvet: Best all year
Mid range · 7.8 / 10
Two duvets that pop together: a lighter one for summer, a warmer one for winter, and both combined for the coldest weeks. Three warmth levels from one purchase, which matches how a British year actually behaves rather than the two-season model the category assumes.
Buy it if
You want one purchase to cover summer, winter and the long British in-between.
Do not buy it if
You want the simplest possible bedding. Two duvets and poppers is more to manage.
Read the full Simba Hybrid 3-in-1 Duvet review
Scooms: Best quality down
Premium · 8.0 / 10
The highest scoring duvet on this site at 8.0. Down works because each cluster traps air in three-dimensional structure, so a higher fill power gives the same warmth for less weight. Weight is what makes a duvet feel oppressive, so light and warm is the whole point of paying for down.
Buy it if
You want genuine Hungarian goose down and you know what fill power means.
Do not buy it if
Anyone in the house has a down allergy, or you need a 60 degree wash.
Panda Cloud Bamboo Duvet: Best for hot sleepers
Mid range · 7.4 / 10
The sensation people describe as sleeping hot is usually clamminess. A fill and cover that move moisture away from the skin feel cooler because they feel drier, and that is a more relevant property than a lower tog number alone.
Buy it if
You wake up damp rather than hot, which is the more common complaint.
Do not buy it if
You want maximum loft. Lighter fills sit flatter.
Read the full Panda Cloud Bamboo Duvet review
Night Lark: Best practical choice
Budget to mid · 7.6 / 10
Coverless duvets go straight in the washing machine, which removes the single most irritating job in bedding and matters a great deal in a household with children. Confirm the wash temperature: 60 degrees is what kills dust mites, and 40 only removes allergen.
Buy it if
There are children in the house, or you dislike changing covers.
Do not buy it if
You want to change the look of the bed regularly.
Read the full Night Lark review
What tog you actually need
| Bedroom at night | Tog |
|---|---|
| Warm, well insulated, heating on overnight | 4 to 7 all year |
| Typical modern UK home | 7 to 10.5 all year |
| Cold, draughty, heating off overnight | 10.5 summer, 13.5 winter |
| You wake up hot | Drop one step before changing anything else |
Tog is also per duvet, not per person. If one of you runs hot and the other cold, no single tog is right, and the fix is two single duvets rather than a compromise. It is normal across Scandinavia and it removes duvet stealing entirely.
Fill power and fill weight, which matter more than tog
Two duvets at the same tog can feel completely different, and these two numbers explain why.
Fill power measures the loft of down: how much space a given weight occupies. Higher fill power traps more air per gram, so the same warmth arrives with less weight on you. This is what you are paying for in an expensive down duvet.
Fill weight is simply how many grams are in it. Two duvets reaching 10.5 tog, one with high fill power down and one with heavy synthetic fill, will feel entirely different to sleep under.
Synthetic fill is not worse, it is different: heavier for the same warmth, washable at high temperatures, and considerably cheaper. For an allergy household, washable at 60 degrees beats every other property.
Buy the duvet bigger than the bed
A duvet sized to the mattress leaves nothing hanging over the sides, so it slides off with any movement and any gap lets warm air out.
Most people are better off going one size up: a king duvet on a double bed, a super king on a king. This matters more if you share a bed, because two people pulling in opposite directions consumes the overhang first.
And check the actual dimensions rather than the name. Duvet sizing is broadly consistent in the UK and European duvets are cut differently, which is a common problem with imported bedding.
What not to buy
A 13.5 tog duvet by default. The single most common cause of waking up hot in a modern British bedroom.
Anything you cannot wash at 60 degrees, if someone has allergies. Dust mites survive a 40 degree wash.
A duvet sized exactly to the bed. It will slide off and let warm air out at the edges.
An expensive duvet before checking the cover. A polyester duvet cover insulates and holds moisture, and undoes a good deal of what you paid for underneath.
A single compromise tog for two people who disagree. Two duvets cost less and work better.
Also considered, and why they are not here
A roundup is only as useful as what it leaves out, so here is what was assessed and rejected for this list.
| Product | Why it is not on the list |
|---|---|
| Simba Duvet | A sound single-season duvet, and the 3-in-1 from the same brand covers a British year properly for not much more. |
| Emma Cloud Duvet | Comfortable and priced above what the specification justifies against the alternatives above. |
| Any 13.5 tog duvet | Not one product but a whole tier. In a modern British bedroom 13.5 tog is the most common cause of waking up hot, and dropping to 7 or 10.5 costs less than any mattress change. |
How this list is made, and who made it
Independence
No brand pays to appear on this site and no placement is sold. Some links earn a commission if you buy, which never changes a score, an order or a verdict. Several of the lowest scores here are on products that carry commission, and several recommendations carry none.
Who writes this. Kyle Klinkradt has worked in the mattress and bedding industry for over ten years across retail, distribution and brand partnerships, and has handled, sold or assessed products from every major UK bed-in-a-box brand. Every review on this site is written by one person, so the scores mean the same thing from page to page.
What the assessment is. Construction specifications against what they physically do: spring height and where in the mattress it sits, spring count for the size, gauge, whether the base is sprung or foam, foam density where it is published, comfort layer depth and material. Then the commercial terms that decide what you are actually buying: trial against returns policy, guarantee length against the company's UK trading history at Companies House, and the regulatory record.
What it is not. This is not a laboratory. I do not publish pressure-mapping data or claim to have slept eight years on every mattress here, because nobody has and pages that imply otherwise are not telling you the truth. Where a judgement rests on construction rather than long-term use, the review says so.
What gets a product removed. Leaving the UK market, a specification change that makes the review inaccurate, or a corrected fact. Brands that have withdrawn are kept on the site with the score removed rather than quietly deleted, because people still search for them.
See editorial independence, corrections and the author page.
How these were chosen
Every product here has its own review on this site with a score out of 10, and the score is a judgement rather than an average. Nothing appears in a list because it pays more.
A score is against the market, not against its own range. The cheapest mattress in a lineup is usually priced to make the model above it look reasonable, and the flagship of a budget range has risen into a bracket where better brands compete. Both are judged against what else you could buy for the money.
Everything listed can actually be bought in the UK. That is not a given: Casper withdrew in July 2020 and Leesa no longer sells here, and both still appear in current British roundups with affiliate links attached.
I do not pad the list. Where only three or four products genuinely qualify, there are three or four. A list of seven when the category contains four good ones is a list with three bad recommendations in it.
Prices move constantly. Judge the cash price on the day rather than any percentage beside it. See every review on this site or where the real savings are.
Questions people ask
What tog duvet should I use in the UK?
Seven to 10.5 tog suits most modern British bedrooms all year. The 13.5 tog winter convention comes from poorly insulated housing, and better insulated homes frequently never get cold enough at night to need one.
What is the difference between tog and fill power?
Tog measures thermal resistance, or how well the duvet stops heat leaving you. Fill power measures the loft of down, so higher fill power gives the same warmth for less weight, and weight is what makes a duvet feel oppressive.
Should couples use two duvets?
If one of you runs hot and the other cold, yes. Tog is per duvet rather than per person, so no single number is right for both of you. It also removes duvet stealing entirely.
What size duvet should I buy?
Usually one size up from the bed: a king duvet on a double, a super king on a king. A duvet sized exactly to the mattress slides off with movement and lets warm air out at the edges.