Cot vs bedside crib: which is better?
Cot
Used from birth, once you are ready to move on from a Moses basket or bedside crib, until your child is ready for a bed.
- Check the internal size and buy a mattress that fits with no gaps.
- Adjustable base heights let you lower the mattress as your baby learns to sit and stand.
- Teething rails protect the top rails from little teeth.
Bedside crib
Used from birth, for the early months of room sharing, until your baby reaches the maker's weight or development limit.
- Check it is made to BS EN 1130:2019.
- Make sure the fixing straps suit your bed frame and leave no gap between the crib and your mattress.
- Check the maximum weight and stage limits in the instructions.
| Cot | Bedside crib | |
|---|---|---|
| Typical use | from birth, once you are ready to move on from a Moses basket or bedside crib, until your child is ready for a bed | from birth, for the early months of room sharing, until your baby reaches the maker's weight or development limit |
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.
- Keep the cot clear: no pillows, duvets, cot bumpers, loose blankets, soft toys, pods, nests, wedges or anything to keep your baby in place.
- The NHS advises placing your baby in a separate cot or Moses basket in the same room as you for every sleep, day and night, for at least the first 6 months.
- Cots and travel cots: look for BS EN 716-1:2017.
- Bedside cribs: look for BS EN 1130:2019.
Related questions
How long can you use a cot?
From birth, once you are ready to move on from a Moses basket or bedside crib, until your child is ready for a bed.
How long can you use a bedside crib?
From birth, for the early months of room sharing, until your baby reaches the maker's weight or development limit.
Shop at Baby Kingdom
Check each product page for its exact dimensions, mattress size, age and weight limits and safety standards.
More advice
Sources
- The Lullaby Trust: Baby mattresses and bedding (accessed 2026-10-21)
- NHS: Sudden infant death syndrome (SIDS) (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.