How long can you use a toddler bed?
Short answer: Typically once your child has outgrown the cot or is climbing out of it. Many UK families switch between about 18 months and 3 years. Always go by the age, weight and development limits in the instructions for your model.
Product limits vary, so check the instructions and the product page.
- 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.
- Mattresses: look for BS 7177:2008+A1:2011, and BS EN 16890:2017+A1:2021 for cot, travel cot and crib mattresses.
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
- Flair Nadia Single Montessori Floor Bed
- Obaby Maya Kids Single Bed
- Kidsaw Peppa Pig Toddler Bed with Safety Rails Blue & Yellow
- Kidsaw Jinsen Single Cottage House Bed White Solid Pine
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
Can an 18 month old sleep with a duvet?Can a newborn sleep with a duvet?Can a 2 year old sleep in a toddler bed?Can a 1 year old sleep in a toddler bed?From cot to toddler bed: a step-by-step moveToddler 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.