A cot bed duvet is a children's duvet sized for a cot bed or toddler bed, and the standard UK size is 120x150 cm. It fits a 70x140 cm cot bed mattress with room to tuck in at the sides and foot. Duvets are for children over 12 months, so a cot bed duvet is the first duvet most children use.
Here are the sizes that go together on a cot bed:
| Item | Standard UK size (cm) |
|---|---|
| Cot bed or toddler bed mattress | 70 x 140 |
| Cot bed duvet | 120 x 150 |
| Cot bed duvet cover | 120 x 150 |
| Toddler pillow | 40 x 60 |
| Cot bed waterproof protector | 70 x 140 |
What is the standard size of a cot duvet?
The standard UK cot bed duvet is 120x150 cm. A smaller cot duvet, around 100x120 cm, is sometimes sold for traditional cots with a 60x120 cm mattress. Most children use a cot bed, so 120x150 cm is the size you'll need in most homes.
The difference comes from the beds. A cot is for babies and has fixed sides, while a cot bed has removable sides and converts into a toddler bed. Since duvets aren't advised under 12 months, the duvet usually arrives at about the time a cot bed becomes a toddler bed.
Does a 120x150 cm duvet fit a toddler bed?
Yes, a 120x150 cm duvet fits a toddler bed. Most toddler beds use the same 70x140 cm mattress as a cot bed, so the duvet is 50 cm wider than the mattress and 10 cm longer. That leaves enough to tuck in or let hang without trailing on the floor.
When your child moves to a single bed, the 120x150 cm duvet becomes too small and you'll need a single duvet, which is 135x200 cm. Our UK duvet sizes chart lists every size from cot bed to emperor.
What size cover fits a cot bed duvet?
A cot bed duvet needs a 120x150 cm cover. Covers labelled cot bed or toddler are usually this size, and many come with a matching 40x60 cm pillowcase. Avoid adult single covers, which are 137x200 cm and leave the small duvet bunched up inside.
Our toddler duvet, 120x150 cm comes in 4.5, 7.5 or 9 tog, on its own or with a matching cot pillow. Our Egyptian cotton toddler cover set is cut to fit it, with four corner ties inside so the duvet can't ball up in one corner overnight. For the bed underneath, our waterproof mattress protector comes in a 140x70 cm cot bed size with a deep fitted skirt.
The tog you choose depends on the room more than the age. Our guide to what tog duvet suits a toddler matches 4.5, 7.5 and 9 tog to the bedroom, and our guide to what a tog rating means explains how warmth is measured. If you're adding a pillow at the same time, see when a toddler can have a pillow.
Written by the Adam Home team at Ensor Mill, Rochdale.
