When should my toddler move from a cot to a bed?
Short answer: There is no fixed age. Many families switch between about 18 months and 3 years, often when their child starts climbing out of the cot.
Here is the detail behind that answer, taken from current UK guidance from the NHS and the Lullaby Trust.
Things to check
- Check the mattress size it takes and buy a mattress that fits snugly.
- Side guards help stop your child rolling out in the early weeks.
- A low height makes it easier to climb in and out on their own.
What the guidance says
- Use a firm, flat, waterproof mattress in good condition, with no raised or cushioned edges, that fits the cot or Moses basket with no gaps.
Related questions
What is a toddler bed?
A low bed sized for a cot-bed mattress (often 140 x 70cm), usually with side guards, for children moving out of a cot.
Shop at Baby Kingdom
- Kidsaw Tractor Junior Toddler Bed Green
- Kids Avenue Heritage Extendable Pull-Out Bed Frame
- Kidsaw JCB 4CX Single Digger Bed with Scoop Toy Box Yellow
- Kidsaw Gruffalo Toddler Bed Frame with Safety Rails
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
Can a 1 year old sleep in a toddler bed?Can a 10 month old sleep with a duvet?Can a 7 month old have a pillow?Can a 2 week old sleep with a duvet?Your 2 year's sleep space: a safe-sleep guideToddler beds buying guide for UK parentsAll toddler beds and big-bed moves advice →
Sources
- The Lullaby Trust: Baby mattresses and bedding (accessed 2026-10-21)
General information only, not medical advice. Always follow your product's instructions. If you are worried about your baby, contact your GP, health visitor or 111. In an emergency, call 999.