It's one of the lightest and most supple fillings, meaning even a 14-tog microfibre duvet will feel light. Some people prefer this as the duvet won't feel heavy on you as you sleep, while others prefer a heavier, more closely hugging duvet. If you're not sure which you'd prefer, make sure you try them out in store before buying. Hollowfibre or microfibre polyester duvets are the most popular type among Which? members – nearly half own one of these. Although you can get duvets in almost any tog rating, the most common togs are 4.5 tog which makes a great summer duvet weight, 10.5 tog which tends to be the best bet for autumn and spring, and 13.5 tog which offers good winter warmth.

At Sleepseeker, you can choose from single duvets, double duvets, king duvets and super king duvets. Browse Sleepseeker’s branded duvet collection If you're a hot sleeper or suffer from night sweats then you might also find this high down-mix fill too warm; opt for a more breathable wool-filled duvet like Floks Luxury British All Seasons Wool Duvetinstead to avoid overheating. Pricing for other destinations within the UK is dependent on weight of parcel and geographical location Buy it if: you're looking for the very best duvet for a great night's sleep. This wool-filled duvet is an investment, but we've tried and tested some of the best winter duvets on the market, and in our opinion, this is the cream of the crop. It's the warmest we've come across, keeping our testers warm and toasty throughout the night without any of the overheating or night sweats that occurred with other high tog options. That's thanks to the naturally thermoregulating properties of wool that allow moisture to escape whilst still providing insulation. Handmade in Yorkshire using 100% traceable British Cheviot wool and certified organic cotton this is also a great eco-friendly option, with wool completely biodegradable.Get help deciding what to buy with our guides to the best mattresses and the best pillows. Duvet types explained You'll know your duvet is due for an upgrade when the filling becomes limp or uneven, or it starts coming through the casing. Having the right duvet can help make the difference between a difficult night's sleep and a peaceful one. Just over half of our survey respondents had bought a new duvet during the past five years. First up, it's synthetic fillings. These duvets are filled with manmade fibres, like polyester and polymide that are made from petroleum-based plastics. Another solution is to opt for an 'all-season' duvet. This consists of two separate lighter tog duvets that can be joined together (usually by way of press studs) to make a warmer winter duvet. Most commonly an all-season duvet will include a 4.5 tog and 9 tog duvet that can create a 13.5 tog duvet once combined, or a 4.5 tog and 10.5 tog duvet that will create a warmer 15 tog combination.

Don't buy it if: you're on a tight budget as this luxury duvet has a luxury price tag. If you're a hot sleeper or suffer from night sweats then you might find down too warm; opt for a more breathable wool-filled duvet instead to avoid overheating. And, if you're vegan, then the feather and down fill won't be for you. Natural-filled duvets will usually contain feathers, down or wool. Soft and luxurious, natural filled duvets like our wool duvets are durable and will last you for years and years. Hollowfibre duvets Snuggledown hollowfibre duvets are loved by people of all ages. This lightweight filling is made from a hollow strand of polyester, with air trapped inside the material to increase fluff and bounce. Hollowfibre is the ultimate anti-allergy duvet product and offers good temperature regulation. Snuggledown hollowfibre duvets carry heat and moisture away from your body to inspire comfort and restful sleep. Snuggledown Goose Feather & Down Duvets Tog, size and type of filling were the three most important considerations reported by the duvet owners we asked. Other important factors included whether the duvet was machine washable, labelled hypoallergenic, and how much it cost.At SleepSeeker, we believe that everyone deserves a happy night’s sleep. We have the perfect blend of sleep expertise, customer knowledge and manufacturing capability. At the warmer end of the scale are 13.5 tog duvets. Choose this rating for when temperatures drop in winter. You’ll be snug and cosy and probably won’t need any extra blankets, unless it’s very cold! Which size duvet is right for me? SleepSeeker supplies high-quality duvets from recognised industry leaders. We offer premium Snuggledown duvets to help you get the perfect night's sleep. Snuggledown is a British manufacturer with rich Norwegian heritage and a long history in bedding design. Snuggledown has been leading the duvet world for more than 100 years, so you can be assured of refined design principles and expert construction. Snuggledown Hollowfibre Duvets

Others might find that an all year round duvet is perfect for them - it depends on the bedroom temperature and your personal preference. 4.5 tog duvets Why you can trust Ideal Home Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test. Then there are the more traditional, natural fillingsto consider. These range from all types of feathers and down to wool filling.

Why choosing the right duvet matters

The highest tog duvet you can buy is usually 15 tog, although we have seen some all-season duvets (where two separate duvets of differing togs are combined into one warmer duvet) offering a combined warmth of up to 18 tog. More than a third of Which? members surveyed choose feather and down duvets, making it the second-most popular option. These lightweight, cosy duvets retain heat well but still help you to avoid overheating. Plus, if cared for properly, they will last much longer than synthetic fibre alternatives. Long thought of as the Holy Grail of duvet fillings, down creates a plump, squishy and super soft duvet.However, that luxury feel comes with a luxury price tag to match. We asked duvet owners whether they felt buying one helped. One third felt their anti-allergic or hypoallergenic duvet had made a fair difference to allergy symptoms and around one in five felt it helped just a little. That said, personally, we think 13.5 tog remains one of the best winter duvet weights, with some finding 15 tog can retain heat a little too much during the night and lead to overheating.