How to Choose a Duvet: Fill, Tog and Feel Explained

A duvet is the one piece of bedding you feel against you all night, yet most of us choose one in a hurry and live with the result for years. The choice comes down to three things: what it is filled with, how warm it is, and how it feels to sleep under. Get those right and the duvet quietly disappears, in the best way. This guide walks through each in turn so you can buy with confidence rather than guesswork.

Quick answer

Choose your duvet in three steps. First, pick a fill: feather and down for natural warmth and softness, or a feather-free option if you want easy care or have allergies. Second, pick a tog for warmth: 10.5 tog suits most UK bedrooms year round, 13.5 tog for colder rooms and winter, 4.5 tog for summer. Third, consider feel and weight: goose down is the lightest and loftiest, duck is a balanced everyday choice, and feather-free can be wonderfully soft while being fully washable. If you and your partner disagree on warmth, a dual tog duvet solves it in one.

Step one: choose your fill

Fill is the heart of a duvet. It determines warmth, weight, softness and how you care for it. There are two broad families.

Feather and down

Down is the soft, fluffy clusters found close to a bird's body; feather is the flatter, springier plumage. Most natural duvets blend the two. More down means more warmth for less weight, a loftier feel and a higher price. More feather adds support and a little more weight for less. Natural fills breathe well and trap warmth efficiently, which is why a good feather and down duvet can feel cosy without feeling heavy.

Within natural fills, the choice is usually goose or duck. Goose down clusters are larger, so a goose duvet tends to be lighter, loftier and warmer for its weight, sitting at the more luxurious end. Duck feather and down is the balanced, hard-working option that most people are perfectly happy with. We compare the two in detail in our guide to goose versus duck feather and down duvets.

Feather-free and down alternative

Feather-free duvets use a soft synthetic microfibre designed to mimic the loft and drape of down. They have come a long way, and a good one feels genuinely cloud-like rather than flat or crunchy. There are three common reasons to choose one. You may have allergies or sensitivity to feathers. You may want a duvet you can wash easily at home. Or you may simply prefer a fill that holds its shape with very little fuss. If that is you, look for a duvet described as soft as down or down alternative, which pairs a plump, breathable feel with straightforward care.

Step two: choose your tog

Tog measures how well a duvet holds warmth, not how thick or heavy it is. A higher tog is warmer. It is worth separating warmth from weight in your mind, because a light goose duvet and a heavier synthetic one can share the same tog while feeling very different.

As a UK guide: 4.5 tog is a summer duvet for warm nights; 9 to 10.5 tog is the all-rounder that suits most bedrooms across most of the year; 13.5 tog is a proper winter duvet for colder rooms or anyone who feels the chill. If you would rather own one duvet than swap seasonally, 10.5 tog is the safest single choice for a typical UK home. Those who like to change with the seasons often keep a 4.5 and a 13.5, or choose an all-seasons pair that clips together.

Bedroom temperature matters as much as the number. A well-insulated, south-facing room runs warmer than a draughty one, so trust how your room actually feels over a rule of thumb. If you tend to overheat, lean one tog lower and let breathable bedding do some of the work.

Step three: think about feel and weight

Two duvets with the same fill and tog can still feel different in the hand and on the bed. This is where personal preference takes over.

Some sleepers love a light, floating duvet that you barely notice; goose down is the classic choice here. Others find comfort in a little more presence and weight over them, which duck feather and down or a fuller synthetic provides. Construction plays a part too: baffle-box or stitched-box designs keep the fill evenly spread so you avoid cold spots and thin corners. If you share a bed, remember you are also choosing for someone else. Where two people disagree on warmth, a dual tog duvet, which pairs two warmths in one, is often the neatest answer and saves an ongoing negotiation over the covers.

Matching the duvet to the sleeper

To bring it together, here is how the pieces tend to fall for different people. If you run warm or the bedroom is stuffy, choose a lower tog, around 9 to 10.5, and a breathable fill, and pair it with cool, airy bedding. If you feel the cold, a 13.5 tog goose or duck duvet gives real warmth without needing to pile on blankets. If you have allergies or want fuss-free care, a feather-free soft as down duvet is the sensible starting point. And if you and your partner never agree, let a dual tog duvet keep the peace. Whatever the fill, a good duvet is a long-term buy, so it is worth choosing for how you actually sleep rather than the lowest price on the shelf. Looking after it well extends that life considerably, which we cover in our guide to caring for luxury bedding.

Frequently asked questions

What tog duvet do I need for all year round?

For most UK bedrooms, a 10.5 tog duvet is the best single-duvet choice, warm enough for cooler months without overheating you in milder weather. If your room runs cold, size up to 13.5 tog; if it runs warm, a 9 tog or an all-seasons pair gives you more flexibility.

Is goose or duck down better?

Neither is simply better, they suit different preferences. Goose down clusters are larger, so goose duvets are lighter, loftier and warmer for their weight, at a higher price. Duck feather and down is a balanced, excellent-value everyday choice. Our goose versus duck guide compares them side by side.

Are feather-free duvets as warm as down?

A good feather-free duvet can match down for warmth at the same tog, since tog measures warmth regardless of fill. Down still tends to be lighter for the same warmth, but modern soft as down fills feel plush and breathable and have the advantage of being easy to wash and allergy-friendly.

What if my partner and I like different warmths?

A dual tog duvet is designed exactly for this. It joins two different togs along the centre, so each side of the bed gets the warmth that suits the sleeper. It is a simple fix for couples who otherwise end up tugging the duvet back and forth.

How often should I replace my duvet?

With good care, a quality duvet lasts several years, often five or more. Signs it is time to replace it include lost loft, persistent cold spots, or fill that has clumped and will not shake back into shape. Airing it regularly and washing it correctly will help it last.

Duvets worth choosing

Laura Ashley Soft as Down Duvet Feather-free, easy care From £79.00 View product Laura Ashley Duck Feather & Down Duvet The balanced natural choice From £99.00 View product Laura Ashley Superior Goose Duvet Light, lofty, luxurious From £129.00 View product

Browse all duvets or explore the feather and down collection.

Choose the fill for how you like a duvet to feel, the tog for how warm your room runs, and let the weight be a matter of preference. Get those three right and you will barely think about your duvet again, which is exactly the point.