Microfibre– the 'luxury' version of hollowfibre, a microfibre fill is made of much finer strands of polyester resulting in a very lightweight duvet with a, yes, more luxurious feel. Some compare microfibre to the feel of down, but it has the upside of not running the risk of animal cruelty. However, again, being made of synthetics, the environmental impact of production and disposal is a concern. Like hollowfibre, microfibre can also cause overheating. 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. After much testing, we think 13.5 tog is best tog duvet for winter, with most of our testers finding 15 tog can retain heat a little too much during the night and lead to overheating. 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.

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. 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.

Buy it if: you want an affordable winter duvet that still feels both warm and luxurious. This recycled polyester fill duvet has 10% silk mixed in, and whilst the proportion doesn't sound huge, it really makes a difference to the way this duvet feels, with a more luxurious touch and really nice drape on the bed, whilst still being lightweight. Even better it's a relatively budget buy, and made from certified recycled polyester from waste (like plastic bottles or manufacturing off-cuts) which helps the movement towards a more circular economy by reducing waste going to landfill. Compared with virgin polyester, recycled polyester helps conserve crude oil reserves during fibre production. Read more in our guide to what tog duvet to buy as well as finding out when is the right time to switch to a summer duvet. What size duvet do I need? An all-season duvet is made up of two separate duvets of differing togs – one lightweight and one midweight – that can be attached together into one single heavyweight duvet or used separately. The idea being that you can mix and match to ensure you have the perfect weight duvet for spring, summer, autumn, and winter. Whether you want a warmer winter duvet to keep you snug as temperatures plummet, you're fed up with overheating during the night and are looking for a more breathable duvet, or your budget buy is past its best and you're looking to invest in a duvet that will add some real luxury to bedtime, we've rounded up the best duvets to shop in this guide. Best winter duvets Buy it if: you're looking for luxury as well as warmth. No duvet fill feels quite as sumptuous as down, and this 90% Hungarian goose-down and 10% goose feather option is one of the best. It's super warm, drapes beautifully, and feels super luxurious. The all-seasons option also offers brilliant versatility; use the 4.5 and 9.0 duvets separately in warmer seasons and combine when the evenings start to drop in temperature to create 13.5 togs of winter warmth. Plus, although it's an investment, the all-seasons design means you'll also be kitted out with cooler tog duvets for spring, summer and autumn.

Don't buy it if: you truly want to splash out on the best duvet for your boudoir. This option is very good for its price, but the higher feather mix does mean it feels more 'clumpy' than the 90% down alternatives on our list. That said, this is still a great buy, and the addition of feathers does make the duvet a little more breathable than a duvet with a higher down percentage, albeit not quite as warm. Emily Attwood, founder of sleep-brand scooms agrees, ''We’d always advise a 9 tog to 13.5 tog for the winter months as this is ideal and will keep you warm. If your house is always on the warmer side, then a 9 tog duvet would probably suit you better throughout the winter months, and you wouldn’t want to go any higher. This will prevent you from overheating which can disrupt your sleep.' Spend some time looking for a new duvet and you'll soon realise there are a whole host of duvet fillings available. From hollow fibre to goose down, synthetic to natural, the array of terms and materials can fast become a little overwhelming.

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. Don't buy it if: you really want to layer on the warmth. This 13.5 tog duvet is plenty snuggly enough, but we think the wool and down options just pip it to the post in terms of cosiness. That said, this synthetic option is far easier to care for as it's machine washable and can be tumble dried on a low heat setting. If you’re struggling to work out what the best tog duvet is to see you through summer heatwaves and plummeting winter temperatures then an all-season duvet could be the answer. Obviously, it isn't always convenient to have a different duvet for each season, so the middle ground of the 10.5 tog duvet is one of the most popular options.