Sizing
Size & fill guide
Below are the finished dimensions of each article, the mattress each one is cut for, and the fill weights that go with them. Every figure is the finished piece, measured flat.
Comforters & toppersFill weightsDuvets (UK sizes)Baby & childDuvet covers & linenPillowsHow to measure
Comforters, duvets & toppers — US sizes
Comforters are cut wider than the mattress so they drape rather than sit on top. If you sleep with a partner who pulls, size up one step.
| Size | Fits mattress | Finished piece |
|---|---|---|
| Twin | 38 × 75 in97 × 191 cm | 68 × 88 in173 × 224 cm |
| Twin XL | 38 × 80 in97 × 203 cm | 68 × 90 in173 × 229 cm |
| Full | 54 × 75 in137 × 191 cm | 80 × 90 in203 × 229 cm |
| Queen | 60 × 80 in152 × 203 cm | 90 × 94 in229 × 239 cm |
| King | 76 × 80 in193 × 203 cm | 106 × 94 in269 × 239 cm |
| Cali King | 72 × 84 in183 × 213 cm | 104 × 98 in264 × 249 cm |
Applies to comforters, duvet inserts and mattress toppers made to US sizes. Custom dimensions are available at no surcharge — contact us.
Fill weights
Down expands and contracts with your body, so the weight you want is about your room rather than the season. Figures below are grams of fill in the finished piece.
| Size | Light | Medium | Warm |
|---|---|---|---|
| Twin | 770g | 885g | 980g |
| Twin XL | 830g | 960g | 1070g |
| Full | 900g | 1040g | 1150g |
| Queen | 1060g | 1215g | 1315g |
| King | 1270g | 1460g | 1560g |
| Cali King | 1350g | 1550g | 1650g |
Light
Warm rooms and hot sleepers. A summer weight, and the right choice for anyone who sleeps hot year round or keeps a warm bedroom.
Medium
Most homes, year round. Our most popular weight. Suits an averagely heated bedroom and most couples who disagree about the window.
Warm
Cold rooms and deep winter. For unheated or north-facing bedrooms, older houses, and anyone who sleeps cold.
Duvets — UK sizes
A duvet made to UK sizes is sized to the bed it covers rather than the mattress it sits on, which is why a Double duvet is square.
| Size | Fits mattress | Finished piece |
|---|---|---|
| Single | 90 × 190 cm3’0″ | 135 × 200 cm53 × 79 in |
| Double | 135 × 190 cm4’6″ | 200 × 200 cm79 × 79 in |
| King | 150 × 200 cm5’0″ | 225 × 220 cm89 × 87 in |
| King X | 150 × 200 cm5’0″ | 240 × 220 cm94 × 87 in |
| Super King | 180 × 200 cm6’0″ | 260 × 220 cm102 × 87 in |
| Emperor | 200 × 200 cm6’6″ | 290 × 235 cm114 × 93 in |
Fill weights for UK sizes are matched to each finished size and listed alongside it at the point of sale.
Baby & child
Baby and child pieces are made in four sizes. Down is warm for its weight, so a piece for a cot is deliberately light.
| Size | Finished piece | Fits |
|---|---|---|
| Bassinet | 30 × 36 in76 × 91 cm | Moses baskets and bassinets |
| Stroller | 30 × 40 in76 × 102 cm | Prams, strollers and car seats |
| Baby Crib | 36 × 52 in91 × 132 cm | Standard cribs and cots |
| Toddler | 40 × 60 in102 × 152 cm | Toddler beds and cot beds |
Duvet covers & bed linen
Covers are cut to the finished insert, not the mattress, so a Queen cover fits a Queen comforter with no bunching at the corners.
| Size | Fits insert |
|---|---|
| Twin | 68 × 88 in173 × 224 cm |
| Twin XL | 68 × 90 in173 × 229 cm |
| Full | 80 × 90 in203 × 229 cm |
| Queen | 90 × 94 in229 × 239 cm |
| King | 106 × 94 in269 × 239 cm |
| Cali King | 104 × 98 in264 × 249 cm |
Not every set is made in every size. The sizes offered for a particular cover are listed with the cover itself.
Pillows
Pillow sizes are standard across the trade, so a case or sham cut for a Standard pillow fits any Standard pillow. Down and feather pillows are measured flat and unfilled loft varies, so allow a little ease when choosing a case.
| Size | Finished piece | Usually fits |
|---|---|---|
| Standard | 20 × 26 in51 × 66 cm | Twin, Twin XL, Full |
| Queen | 20 × 30 in51 × 76 cm | Queen |
| King | 20 × 36 in51 × 92 cm | King, Cali King |
| Euro square | 26 × 26 in66 × 66 cm | Shams and back cushions |
| Body | 20 × 54 in51 × 137 cm | Side and pregnancy sleepers |
How to measure
Measure the mattress across the top, then down one side including the depth you want covered. A deeper mattress, a topper, or a bed with no footboard all argue for the next size up. Every figure on this page is the finished piece after filling, measured flat.
Still deciding?
Custom dimensions are made to order at no surcharge, and we will match a piece you already own if you send us its measurements. Talk to us — we answer within the hour.

