What does tog rating mean and which tog should I choose for each season?

Tog is a measure of how well a duvet traps warmth, not how heavy it is, so a high-tog duvet keeps you snug without necessarily feeling weighty. As a rough guide, a 1.5 to 4.5 tog duvet suits warm summer nights, a 9 to 10.5 tog duvet works well through spring and autumn, and a 12 to 13.5 tog duvet keeps you cosy in deep winter. Pick your tog around how warm your bedroom runs and how warm you like to sleep.

What is the difference between feather and down duvets and synthetic ones?

Feather and down duvets offer a soft, naturally breathable feel with an excellent warmth-to-weight ratio, so they stay light yet cosy and help regulate temperature through the night. Synthetic and microfibre duvets mimic that softness using fine hollow fibres, are typically easier to wash at home, and are a sensible choice if you prefer a hypoallergenic option that is kinder to sensitive sleepers. Both keep you warm; the choice comes down to feel, care and budget.

What is an all-season duvet and how does the popper system work?

An all-season, or all-year-round, duvet is two separate duvets in one. You usually receive a lighter summer-weight duvet and a slightly warmer spring or autumn duvet, joined together with poppers around the edges. Use the lighter layer alone in warmer months, the medium layer in milder weather, and popper the two together for a higher combined tog that keeps you snug through winter. One set adapts comfortably across the whole year.

What is baffle box construction and why does it matter?

Baffle box construction uses internal fabric walls, or baffles, to create three-dimensional pockets that hold the fill in place. This stops the down or fibre filling from shifting and bunching, so warmth stays evenly distributed across the duvet rather than gathering at the edges. The practical benefit is no thin, cold spots in the night and a consistently cosy, well-loft duvet that drapes neatly over your bed and keeps its shape over time.

What duvet sizes do you offer and how do I match one to my bed?

We offer duvets in single, double, king and super king sizes to suit standard UK bed dimensions. As a simple rule, match the duvet to your mattress size, then size up if you share the bed or like extra fabric to tuck around you, since a more generous duvet reduces tugging and draughts. If you prefer a fuller drape over the sides of a divan or deeper mattress, choosing the next size up gives you that softer, more luxurious finish.

How should I wash and care for a duvet?

Always check the care label first, as washing instructions vary by fill and size. Many synthetic and microfibre duvets can be machine washed at home on a gentle cycle, while larger or feather and down duvets are often best taken to a launderette with a roomy commercial machine. Dry your duvet thoroughly, tumble drying on low with clean dryer balls to keep the fill lofted, and air it regularly to keep it fresh, breathable and cosy for longer.

What tog duvet is best for summer?

A 4.5 tog duvet is the standard summer weight for most UK bedrooms. It provides a light layer of covering that stops you feeling exposed while allowing body heat to escape, so you stay comfortable without overheating. If you sleep particularly warm, or your bedroom heats up significantly during the day, a 1.5 tog duvet is an even lighter option - barely there in terms of insulation, but enough to give you something to sleep under. Belledorm's summer duvets are available in both 1.5 and 4.5 tog across a range of natural and synthetic fillings, in sizes from single to emperor.

What is the difference between a 1.5 tog and a 4.5 tog summer duvet?

A 1.5 tog duvet is the lightest option available, it provides almost no insulation and is designed purely for the hottest nights or for sleepers who run very warm. A 4.5 tog duvet offers a little more warmth and is suitable for the full summer season in most UK homes, including cooler evenings in June and September. If your bedroom stays above 20°C at night during summer, 1.5 tog is likely the more comfortable choice. If your bedroom drops below that, or you prefer the feeling of a duvet with a little more substance, 4.5 tog will cover the season more comfortably.

Which summer duvet filling is best for hot sleepers?

If you overheat at night, a natural filling will generally regulate temperature more effectively than synthetic. Wool is one of the best options for hot sleepers, it actively wicks moisture away from the body, which helps you cool down rather than trapping heat. Mulberry silk is similarly breathable and lightweight, with natural temperature-regulating properties that keep you cool in warm weather. White goose down is extremely light for its warmth level, allowing air to circulate through the duvet rather than being trapped. Synthetic microfibre at 1.5 tog is also effective for hot sleepers, it has almost no thermal insulation, so very little heat is retained.

Can I use just a sheet instead of a summer duvet?

You can, and some people prefer to sleep under a flat sheet or just a duvet cover during heatwaves. The difference a summer duvet makes is in airflow and moisture management. A 1.5 or 4.5 tog duvet, particularly one with a natural filling like wool or silk, helps draw perspiration away from the body rather than leaving it against the skin, which is what happens with a sheet alone. A lightweight duvet also provides a gentle weight that many people find helps them fall asleep more easily. If you find even a 1.5 tog too warm on the hottest nights, sleeping under just a cotton duvet cover with no duvet inside is a good compromise.

What is the best duvet for summer allergies?

A synthetic microfibre summer duvet is the most practical choice if you suffer from hay fever or dust mite allergies. Microfibre does not provide a hospitable environment for dust mites, can be washed at 40°C or higher to remove allergens, and dries quickly - reducing the chance of damp conditions that encourage mite growth. Belledorm's microfibre summer duvets are fully hypoallergenic and box-quilted to keep the filling evenly distributed. If you prefer a natural option, wool and Mulberry silk are both naturally resistant to dust mites. Using a duvet protector underneath your duvet cover adds a further barrier against allergens.

When should I switch from a spring duvet to a summer duvet?

Most people in the UK switch to a summer duvet between late April and mid-May, once overnight temperatures are consistently mild and bedrooms are staying above 16–18°C. The clearest sign is how you feel during the night - if you are pushing your 10.5 tog spring duvet aside, waking up warm, or sleeping with a leg or arm outside the covers, it is time to switch. You do not need to wait for full summer weather. Moving to a 4.5 tog early and layering a light throw on top for the occasional cool night is more comfortable than staying under a heavier duvet for too long.

How do I wash a summer duvet?

Synthetic microfibre summer duvets can be machine washed at 40°C on a gentle cycle. Use a large-capacity machine, a standard domestic drum may not have enough space for a double or larger duvet to move freely during the wash, which can leave detergent trapped in the filling. Tumble dry on a low setting until completely dry to prevent dampness. Natural-filled summer duvets vary by filling: wool and silk duvets typically require professional dry cleaning or specialist laundering - always follow the care label. White goose down and feather and down duvets can sometimes be machine washed on a delicate cycle, but check the care instructions for your specific product first.

What sizes are Belledorm summer duvets available in?

Belledorm summer duvets are available in single (135 × 200 cm), double (200 × 200 cm), king size (230 × 220 cm), super king (260 × 220 cm), and emperor (290 × 235 cm). Choose the size that matches your duvet cover. If you prefer extra overhang at the sides of the bed, you can go one size up - for example, using a super king summer duvet on a king size bed gives more drape, which some people find more comfortable. All sizes are available in both the 1.5 tog microfibre and the 4.5 tog range across natural and synthetic fillings.

Is a wool duvet too warm for summer?

A lightweight wool duvet at 4.5 tog is well suited to summer. Wool regulates temperature differently from synthetic and down fillings - it absorbs and releases moisture as your body temperature changes during the night, which helps prevent the overheating and then chilling cycle that can disrupt sleep. A 4.5 tog wool duvet does not trap heat in the same way as synthetic at the same tog rating, because the natural fibre allows air to circulate through the filling. If you tend to fluctuate between feeling warm and cool during the night, wool is one of the most effective fillings for maintaining a steady temperature.

Should I use a different duvet cover with my summer duvet?

Switching to a lighter, more breathable duvet cover for summer can make a noticeable difference. A cotton percale duvet cover has a crisp, cool feel and an open weave that allows more air to circulate than a sateen. Bamboo duvet covers are also naturally temperature-regulating and moisture-wicking. If you currently use a high thread count sateen cover (600TC or above), the denser weave may retain more warmth than you want in summer - consider dropping to a 200 or 300 thread count percale for the warmer months. The duvet cover you sleep under affects how warm you feel just as much as the duvet itself.

1.5 Tog Summer Duvets

When the nights get warmer, a heavy duvet becomes the enemy of good sleep. You overheat, you push the covers off, you wake up, and by morning you've barely rested at all. Our 1.5 tog microfibre duvet is built for exactly this. It gives you just enough cover to feel settled without holding in the heat that disrupts your rest. The filling is 100% microfibre, fine, soft, and hypoallergenic, with a smooth polyester casing and box quilted construction that keeps the warmth even from corner to corner. No clumping, no cold spots, no fuss. Machine washable at 40°C and quick drying, it's easy to keep fresh through the months when bedding needs washing more often. Use it on its own through summer, or layer it with a higher tog duvet during spring and autumn for a combination that adjusts with the seasons. Light, practical, and made to help you sleep comfortably when the temperature rises.

Natural Duvets King Size Duvets Single Duvets Emperor Duvets 4.5 Tog Summer Duvets Double Duvets