Goose down in duvets - the benefits

Hungarian Goose Down Duvet Hanging on Tree Branch Outside | scooms

Down is recognised as the world’s best natural insulator:

Warmth -  Down provides approximately three times the warmth per gram compared to even the best synthetics.  Down also provides the greatest warmth to weight ratio (that’s why it’s the choice for mountaineers in jackets and sleeping bags). There are typically 2 million interlocking fluffy filaments for every 30 grams of down.  These interlock and overlap to create pockets of air, which is what keeps you warm.

Hungarian goose down cluster | scooms

Durability -  When properly looked after down will maintain its loft and insulation for many years.

Comfort -  Synthetics can clump together over time leaving cold spots.  Down continually re-lofts and moulds itself to your body.  Downs ability to wick away moisture and to breathe avoids the clamminess issues that are sometimes felt with synthetics.  Sleep under a down then a synthetic duvet and you’ll really feel the difference.  We tested lots!

Natural -  Down has evolved over thousands of years to be the perfect insulator.  What’s more we love it because its natural, biodegradable and recyclable It will last for decades.

Breathability -  Because down is naturally breathable it reduces the moisture trapped in our bedding as we sleep.  This makes it a very poor habitat for dust mites which rely on high humidity to live.


The difference between down and feathers

Not all feathers are the same and not all down is the same.  There are different grades and qualities.  How the down or feather is treated also has an impact.  

Feathers are typically larger and heavier than down.  They have a quill which runs down the centre of the feather giving them more weight. Feathers are long and flat (whilst down is spherical), so more feathers are needed to provide the same amount of insulation as down because they trap less air.

Feathers come in different grades. Some are large and spiky, whilst others are fine, almost like down. 

With the scooms duvet, we decided after testing to add some feathers to provide the duvet with a bit more weight.  This helps the duvet to drape over your body. The feathers we use are very small new white Hungarian goose feathers. They are more expensive but worth it, given how much time you spend wrapped in your duvet!


The difference between goose down and duck down

The quality of the down is important when making a comparison. So a low quality goose down is not as good as a high quality duck down. However, overall we think goose down is better due to its high fill power.

To get down with a high fill power requires large down clusters. These wispy spherical structures of down provide exceptional loft and warmth. And geese, being larger than ducks, produce sufficiently large plumules (down feathers).

Goose down is also more resilient meaning that it lasts longer and stays as comfortable as the day you bought your duvet.

The scooms duvet is filled with lovely cosy new white Hungarian goose down


Hungarian goose down and feathers

Not all down is the same.  Many countries produce down.  The climate, genetics of the geese and how it is processed all have a big impact.  We think pure Hungarian down is the best.



Author: Jonathan Attwood: :

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Bedding size guide


These are standard UK bedding measurements so if you know your mattress size, you can easily work out which duvet size you need. (Width x length.)

UK sizes Duvet size Mattress size
Single 135 x 200cm (53 x 79") 90 x 190cm (36 x 75")
Double 200 x 200cm (79 x 79") 135 x 190cm (53 x 75")
King 225 x 220cm (89 x 87") 150 x 200cm (60 x 78")
Super king 260 x 220cm (102 x 87") 180 x 200cm (72 x 78")

US/CANADA BEDDING SIZES: Approximate matches to UK sizes are US King/UK Super king, US Queen/UK King,  US Full/UK Double and US Twin/UK Single.

EUROPEAN BEDDING SIZES: Each size - Single, Double, King and Grand king - is a little larger than the UK equivalent.

Measure your mattress to see which size bedding you need: our UK v European v US mattress comparison guide.



Young children can overheat so if they are old enough to use a full size bed, we recommend using a single size 4.5 tog duvet.

 Tog rating Season / heat Feel
2.5 tog High summer / hot sleepers Light thermal insulation
4.5 tog Summer Lower thermal insulation
9 tog Spring & Autumn Cosy medium heat
All season 13.5 tog 4.5 tog + 9 tog Very warm
All season 11.5 tog 2.5 tog + 9 tog Warm
All season 7 tog 2.5 tog + 4.5 tog Lower warmth



Our goose down duvets have high 700 fill power. Fill weight is measured in GSM (grams per square metre). For example view our 9 tog king size goose down duvet for more duvet details.

Fill weight (not total duvet weight)
Single All seasons - 788gsm
9 tog - 486gsm 
4.5 tog - 302gsm 
2.5 tog - 220gsm
Double All seasons - 1168gsm
9 tog - 720gsm
4.5 tog - 448gsm
2.5 tog - 320gsm
King All seasons - 1478gsm
9 tog - 911gsm
4.5 tog - 567gsm
2.5 tog - 400gsm
Super king All seasons - 1671gsm
9 tog - 1030gsm
4.5 tog - 641gsm
2.5 tog - 480gsm



Our pillows come in two sizes and two firmness options. (Width x length.)

Standard  50 x 75cm
King 50 x 90cm



Our fitted sheets are deep fit, up to 40cm / 15.7" mattress depth. And our duvet covers fasten with large, easy to use buttons. (Width x length.)

Duvet cover Fitted sheet Flat sheet Pillowcase (pair)
Single 140 x 200cm 90 x 190cm 180 x 275cm
Double 200 x 200cm 135 x 190cm 230 x 275cm 50 x 75cm (Standard)
King 230 x 220cm 150 x 200cm 275 x 275cm 50 x 90cm (King)
Super king 260 x 220cm 180 x 200cm 305 x 275cm



Our mattress protectors are deep fit, up to 40cm mattress depth. Choose the same size protector as your mattress size. (Width x length.)

Mattress protector size Mattress size
Single 90 x 190cm 90 x 190cm
Double 135 x 190cm 135 x 190cm
King 150 x 200cm 150 x 200cm
Super king 180 x 200cm 180 x 200cm 


£10 off your 1st order over £200

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