Summer duvet / Lightweight duvet / 4.5 tog duvet

4.5 tog Hungarian goose down duvet | scooms

The best summer duvet or lightweight duvet will help you sleep more comfortably during the summer months and warmer weather. Choose 2.5 tog to 4.5 tog for a summer duvet.




In our in-depth guide, we cover everything you need to know before buying a summer duvet; plus our top 10 tips for sleeping well during the summer months.

Our top recommendations for the best summer duvet and summer bedding:

  • A 2.5 tog to 4.5 tog duvet is the ideal tog rating for a summer duvet. The lower the tog rating, the less insulating the duvet, so aim for a tog rating of at least 7.5 tog or lower.
  • Natural materials, like cotton, linen, down, feather and wool, are much more breathable and sweat wicking than synthetic bedding.
  • A high percentage down duvet provides 3-4 times more air circulation than a synthetic duvet.

What to consider when buying a summer duvet or a lightweight duvet:  

  1. What tog is a summer duvet?
  2. What is a summer duvet? - materials
  3. What is a summer duvet? - construction
  4. What is a lightweight duvet?
  5. Down duvet fill weight
  6. Down duvet fill power
  7. What sizes do summer duvets come in?
  8. All seasons duvets for the summer
  9. Washing your duvet and bedding in the summer
  10. Top 10 tips for sleeping well during the summer months



The tog rating of a duvet explains the amount of warmth that the duvet will provide. The lower the tog rating, the less warm the duvet:

  • A tog rating of at least 7.5 tog and lower will ease your sleep during the summer.
  • A 4.5 tog duvet is the ideal tog rating for a summer duvet.
  • A 2.5 tog duvet is a lighter insulating duvet suitable for high summer and hot sleepers.
  • A 9 tog duvet is perfect for the spring and autumn months.
  • An all seasons duvet can be a great investment. Two duvets, one lower tog and one higher tog, can be easily fixed together, giving you options for each season of the year. Usually an all seasons duvet consists of a 9 tog spring/autumn duvet and a 4.5 tog summer duvet that combine to make a cosy 13.5 tog winter duvet.

We offer three different All season duvet combinations, a 13.5 tog, a 11.5 tog and a 7 tog. Our all seasons duvet comes in a lovely reusable fabric storage bag, so you can handily store one duvet during the months that you're not using it.



The best summer duvets will help you avoid poor sleep and waking up feeling sticky and tired. As well as the tog rating, you need to consider the breathability of the summer duvet materials. A summer duvet with good breathability will help any moisture from sweat to escape more easily. Naturally breathable duvet fillings like goose down, offer up to four times better air circulation than synthetic duvet fillings.

Make sure your summer duvet casing as well as your summer bed linen - duvet cover, sheets and pillowcases - are 100% cotton not synthetic as cotton is both temperature regulating and sweat wicking. 



The construction of a summer duvet can also help you manage your body temperature as you sleep. A pocket construction, such as Box or Baffle stitched, ensures that the duvet filling is evenly distributed and doesn’t all sink down to your toes. It also gives the down duvet filling more space which increases fluffiness and breathability.

The scooms 9 tog duvet has extra side walls inside the pockets, giving the down more space and allowing for extra fluffiness and breathability. 



Lightweight duvets and bedding can help you to have a better night’s sleep for a variety of reasons - if you get too hot when you sleep or suffer from night sweats; if you have restricted movement due to age or injury; or if you’ve had a recent operation.  A lightweight duvet won’t weigh you down awkwardly and should help you sleep much more comfortably. 

lightweight duvet can come in a variety of tog ratings. A heavy synthetic duvet can provide 4.5 tog summer warmth and so can a much more lightweight goose down duvet. Check the duvet fill weight, which is the weight of the duvet filling, before you buy. 



The higher the fill weight, the heavier the duvet. However, a heavy duvet doesn't necessarily equal a warmer duvet. In down or feather duvet fillings, fill power not fill weight measures the effectiveness and quality of the insulation provided. So, a duvet with high fill weight but low fill power will be heavy and provide poor insulation. 

(Note that 'GSM' means the weight of the filling within a square metre.)



Down-rich duvets are a great choice as a lightweight duvet as they still provide superior warmth and temperature regulation. Down is the best natural insulator and offers the greatest warmth to weight ratio. Goose down has a larger number of fluffy filaments than duck down or feather which means it is a more lightweight duvet filling.

Down fill power measures the quality and effectiveness of down and feather. The fluffier the down is, the greater the number of air chambers and therefore, the more effective it is at insulating. So a higher fill power provides a more insulating and lighter weight duvet.  



Summer duvets come in all the normal duvet sizes. Here are the standard UK sizes that we sell on scooms: 



An all seasons duvet  can be a flexible option to buy at any time of year, as it combines a lower tog duvet with a medium tog duvet. Typically a 4.5 tog duvet is paired with a 9 tog duvet giving you a summer heat duvet and an autumn heat duvet that can be combined to make a very toasty 13.5 tog if you need it.

We also offer a 7 tog all seasons duvet that is ideal for summer nights and hot sleepers, combining a 2.5 tog duvet with a 4.5 tog duvet.

During the summer months, you will want to easily be able to store your autumn duvet. We suggest a large dust proof breathable bag that is the right size to hold the duvet and won't damage the filling by squashing it. All scooms duvets come in a free fabric storage bag.



If you have the right tog summer duvet made with naturally breathable materials, such as down and cotton, then you shouldn't need to wash it more than usual during the summer months. See our guide to duvet care.

If you have a synthetic duvet, it will trap more moisture when you sweat at night providing a breeding ground for nasties and so you may want to wash it more frequently. Remember though, that synthetic duvets made from microfibre, hollow fibre or soft as down, are all filled with a form of plastic which will release microplastic pollution into the water system during washing.

If you can, we recommend that you dry your duvet outside during the summer as the sunlight acts as an antibacterial force.

Make sure you wash your bed linen such as sheets, duvet covers and pillowcases once a week. See our guide to changing your bed linen



A low tog rating and breathability are the most important things to consider for a summer duvet. And fill weight and fill power are the key elements to think about for a lightweight duvet. But how else can you make sure you're sleeping as cool and comfortably as possible?

  1. Breathable bedding - natural materials are sweat wicking and temperature regulating - choose cotton sheets, linen bedding and down duvets or wool duvets.
  2. Lower tog rating - the lower the tog rating, the less insulating the duvet - pick a 2.5 to 7 tog duvet.
  3. Ideal room temperature - the best sleeping temperature is 17 to 18 degrees - try shutting your curtains during the day to keep the temperature down.
  4. Air your room - keep the window open or use a fan for a cooling breeze while you sleep.
  5. Cotton nightwear - wearing cotton next to your skin allows air to circulate and will absorb any sweat.
  6. Avoid drink or food too close to bedtime - stimulating caffeine, alcohol or a big meal will all keep your body working throughout the night increasing your body temperature.
  7. Cool down before bed - a cold or warm shower will cool you down before sleep - warm showers trigger your body's natural cooling response.
  8. Drink water - keep a cold glass of water by your bed to sip when your mouth feels dry.
  9. Cooling tips - fill a hot water bottle with icy water or store your pyjamas or pillowcase in a cold environment for an hour before bed.
  10. Avoid body contact - sleeping too close to someone else's body heat can increase your own body temperature! 




Top summer duvet faqs:

What tog is a summer duvet?

The lower the tog rating, the less warm the duvet. So, you might want a lower 2.5 tog duvet or 4.5 tog duvet for the summer, a medium 9 tog duvet for spring and autumn and a higher 13.5 tog duvet for the winter.

What is a summer duvet?

A summer duvet should be 7.5 tog or lower, made from a naturally breathable filling like goose down and covered in a temperature regulating and sweat wicking fabric such as 100% cotton.

What is a lightweight duvet?

The lower the fill weight, the lighter the duvet. Look for the GSM of the duvet before you buy, which will tell you the weight of the filling within a square metre. A lightweight duvet shouldn't weigh you down awkwardly and should help you sleep much more comfortably. 

Also in Duvet tog ratings

Duvet tog ratings | scooms duvets & bedding
Guide to duvet tog ratings

What tog duvet should you buy? The tog rating measures the thermal insulation of a duvet, which tells you how warm the duvet will be. The higher the tog rating, the warmer the duvet. So, you might want a lower 4.5 tog duvet for the summer, a medium 9 tog duvet for spring and autumn and a higher 13.5 tog duvet for the winter.

Read more →

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
Double 200 x 200cm (79 x 79") 135 x 190cm
King 225 x 220cm (89 x 87") 150 x 200cm
Super king 260 x 220cm (102 x 87") 180 x 200cm 

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).

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 provide medium support. (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

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