What tog duvet does a child need? A guide by age

Choosing the right tog for a child is not the same as scaling down from adult bedding. Children regulate their body temperature differently to adults, and for very young children there are safety considerations that matter more than comfort preference. This guide covers the right tog rating at each stage from babies through to teenagers, what to look for in a filling, how to keep children cool in summer, and how to care for kids' duvets.

If you want a refresher on what tog means and how it is measured, our duvet tog guide covers the full breakdown for adults.

Can babies use a duvet?

No. A duvet is not recommended for babies under 12 months old. This is consistent guidance from the NHS and the Lullaby Trust, the leading UK charity for safer baby sleep. A duvet can restrict airflow around an infant and increases the risk of overheating, both of which are associated with an increased risk of sudden infant death syndrome (SIDS).

For babies under 12 months, a firm, flat mattress with a well-fitted sheet is the recommended setup. Baby sleeping bags (also called sleep sacks) are widely used as a safe alternative to loose bedding for this age group, and come in different tog ratings designed for different room temperatures.

Our nursery bedding range focuses on safe, appropriate options for babies and young children.

Is my child ready for a duvet?

Once a child reaches 12 months, a lightweight duvet can be introduced. However, age alone is not the only consideration. Some children are not ready for a duvet at 12 months even if they are old enough in theory. If your child still moves around a great deal during the night, still has cot sides up, or has not yet transitioned out of a sleep bag, it is fine to continue with what they know until they are ready. There is no fixed milestone; follow their lead rather than a strict date.

When the time does come, make sure the duvet size matches the bed size. A duvet that is too large for the bed can drape over the sides and create a risk of overheating, as well as being harder for a small child to manage during the night. For a cot bed, use a cot bed size duvet. For a single bed, use a single duvet.

What tog duvet for a toddler (12 months to 3 years)?

For children from 12 months to around 3 years, a 3 to 4.5 tog duvet is the right starting point. This age group can overheat more easily than older children, so a lighter rating than you might expect is appropriate even in cooler months.

Keep the bedroom temperature in mind. The NHS recommends keeping a young child's room at around 16 to 20 degrees Celsius overnight. A 3 to 4.5 tog duvet provides enough warmth at that temperature without the risk of overheating.

A junior-sized duvet (around 120cm x 150cm) is the right fit for a cot bed or toddler bed at this stage.

What tog for children aged 3 to 6?

From around age three, most children have moved to a standard single bed and are old enough to move around at night without concern about loose bedding. A 4.5 to 7 tog duvet works well for this age group across most of the year.

In summer, or if the bedroom temperature regularly sits above 20°C, drop to a 2.5 to 4 tog duvet. Children in this age group are still less able to regulate their own temperature than adults, so the summer range for a child should be lower than you would choose for yourself. On particularly warm nights, a light cotton blanket rather than a duvet at all can be the most comfortable option.

Browse our kids bedding collection for single and junior-sized options.

What tog for children aged 7 to 12?

By school age, a child's needs start to move closer to adult ranges. A 7 to 10.5 tog duvet suits most children in this group through autumn and winter, with a lighter 4 to 7 tog option in summer.

Bedroom temperature still matters here. A well-heated room needs a lower tog; a cooler room or a child who repeatedly kicks the covers off needs more warmth. Trust what your child tells you rather than sticking to a chart.

What tog for teenagers?

Teenagers can generally be guided in the same way as adults. The standard UK recommendations of 4.5 to 7.5 tog for summer and 12 to 13.5 tog for winter apply, with a 9 to 10.5 tog working for most of the year as a mid-season weight.

Personal preference is a reasonable guide at this age, as long as there are no health or safety concerns. Our duvets and pillows range covers the full size and tog spectrum.

Kids' duvet tog by age: quick reference

What duvet filling is best for children?

Filling choice matters alongside tog rating, and for children there are a few specific considerations.

Synthetic fillings are a practical first choice for most families. They are non-allergenic by design, typically lighter in weight than natural alternatives at the same tog rating, and most are machine-washable at home. For children with allergies, asthma, or eczema, a synthetic filling with anti-allergy properties is worth seeking out.

Cotton is a good natural option for children. It is naturally breathable, which helps to regulate temperature rather than trapping heat, and tends to feel lighter than a down fill of comparable warmth.

Wool is worth considering for children who tend to overheat and then get cold again during the night. Wool is naturally temperature-regulating: it traps warmth when it is cold and releases it when it is warm, which makes it a particularly practical filling for children who are not yet consistent at managing their own covers during the night.

Feather and down fillings are warm and breathable but heavier, and may not suit young children who need to be able to manage the duvet themselves. They also require more care when washing. For most children under 7, a synthetic or cotton filling is the more practical choice.

Keeping children cool in summer

Getting the tog right for summer is only part of the picture. For children, overheating during sleep is a more significant concern than for adults, so it is worth thinking about the full sleep environment rather than just the duvet.

On warm nights, switch to a lighter tog or replace the duvet with a lightweight cotton blanket entirely. If the bedroom temperature is consistently above 20°C, a blanket is often more practical than even a 2.5 tog duvet.

Light cotton pyjamas or a short-sleeved sleep suit help regulate temperature better than thicker fabrics. Good airflow in the room, through an open window if safe to do so, or a fan at a distance, also makes a real difference.

For more summer sleep advice, take a look at our guide on how to sleep in the summer heat, which covers bedding choices alongside practical tips.

How to wash a child's duvet

Most children's duvets, particularly those with synthetic fillings, are machine-washable at home. Always check the care label first. A gentle cycle at 30 or 40 degrees is typical for synthetic and cotton fills. The drum needs to be large enough for the duvet to move freely; if it is packed in tightly, the duvet will not come out properly clean and the machine may be put under unnecessary strain.

Tumble dry on a low heat or air dry flat, and always make sure the duvet is completely dry before putting it back on the bed. Damp filling can cause mildew and can also feel clammy for a child sleeping under it. A shake once dry helps the filling settle evenly.

Because children's duvets tend to go through more than adult ones, washing every three to four weeks for a regularly used bed is a reasonable guide. Having a spare set of kids' bedding is useful for this reason.

What size duvet does a child need?

Getting the size right matters alongside the tog rating. As mentioned above, a duvet that is too large for the bed can cause overheating and is harder for a child to manage independently.

A junior duvet (around 120cm x 150cm) suits a cot bed or toddler bed. For a standard single bed, a single duvet (135cm x 200cm) is the right size from around age 3 onwards.

Frequently asked questions

What tog duvet does a child need? It depends on age and season. Babies under 12 months should not use a duvet. Toddlers from 12 months suit a 3 to 4.5 tog. Children aged 3 to 6 work well with 4.5 to 7 tog for most of the year, dropping to 2.5 to 4 in summer. Older children from 7 upwards can use a wider range in line with adult recommendations.

Can a 1-year-old have a duvet? At 12 months, a lightweight 3 to 4.5 tog duvet can be introduced. Before 12 months, both the NHS and the Lullaby Trust advise against using a duvet. A baby sleeping bag rated for the room temperature is the recommended alternative.

What is the best tog for a child's summer duvet? For children aged 3 to 6, a 2.5 to 4 tog duvet is appropriate for summer. If the room temperature is consistently above 20°C, a lightweight cotton blanket rather than a duvet may be more comfortable. Children overheat more easily than adults, so the summer range for a child should be lower than you would choose for yourself.

Can a child's duvet be too warm even at a low tog? Yes, if the room is warm, the child is wearing thick pyjamas, or the duvet is too large for the bed. Overheating is a more significant concern in children than in adults. If your child regularly kicks the covers off or wakes sweating, a lower tog or a blanket instead of a duvet is worth trying.

What filling is best for a child with allergies? A synthetic filling with anti-allergy properties is the most practical choice for children with allergies or asthma. These fillings are non-allergenic by design and most can be washed easily at home, which helps to reduce dust mite buildup.

What size duvet does a child need? A junior duvet (around 120cm x 150cm) for a cot bed, and a single duvet (135cm x 200cm) for a standard single bed from around age 3 onwards. Using a duvet larger than the bed size can cause overheating and makes the duvet harder for a child to manage.

At what age can a child use an adult-weight duvet? There is no fixed age, but by around 12 to 13, most young people can be guided by adult tog recommendations. Personal preference and bedroom temperature matter more than age at that point.

My child keeps kicking the duvet off. What should I do? This is common, particularly in younger children. If the bedroom temperature is comfortable and your child sleeps well without the duvet, they may simply not need it. If you are concerned about them getting cold, a lower tog duvet or a light sleeping bag for slightly older children is worth considering.

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Browse our kids bedding and nursery bedding collections, or visit our duvets and pillows range for the full selection. Our duvet tog guide covers adult tog ratings in full if you are choosing for a grown-up bedroom at the same time.

This guide is put together by our bedding team. For safe sleep guidance for babies and young children, the Lullaby Trust is the most up-to-date UK source. If you have questions about which duvet is right for your child, our customer service team is happy to help.