Posted by Dean smith
Buying cot bed bedding can be confusing because cot beds, cots and toddler beds do not all use the same mattress dimensions. Choosing the right size helps the fitted sheet stay secure, keeps the mattress surface smooth and makes everyday bed changes much easier.
What is a cot bed?
A cot bed is a larger sleep space that can often convert from a cot into a toddler bed. The mattress size is usually different from a compact cot, Moses basket or bedside crib, so cot-bed sheets should not be chosen by appearance alone.
Measure before you buy
Check the mattress length and width, then compare them with the bedding product details. Measure the mattress rather than the outside of the cot because the frame can be wider than the sleeping surface. If your mattress is an unusual size, look for bedding made specifically for that measurement.
What bedding does a cot bed need?
Start with two or three fitted sheets and a compatible waterproof mattress protector. Depending on your baby's age and your safe-sleep routine, you may also use a lightweight blanket or a correctly sized sleeping bag. Avoid filling the cot with decorative extras.
How should a fitted sheet fit?
The sheet should fit tightly around the mattress, with the elastic fully secured and no loose fabric across the sleeping surface. It should not ride up at the corners or leave gaps around the edge. If it becomes stretched, damaged or loose after washing, replace it.
Cot bedding and toddler bedding
When the cot bed converts to a toddler bed, the mattress may remain the same size, but the bedding style can change. Check whether the bed frame, mattress and sheets are still approved for the new configuration. Use age-appropriate blankets or a sleeping bag and continue to keep the sleep space clear.
Blankets, duvets and sleeping bags
Follow current safe-sleep guidance for your child's age and development. For babies, keep bedding lightweight and ensure the head and face remain uncovered. A sleeping bag should fit well at the neck and armholes and have the correct tog rating for the room. Do not use pillows or duvets for a baby unless trusted guidance confirms they are suitable for your child's stage.
Washing and caring for cot bedding
Look for durable, washable fabrics and follow the care label. Wash new bedding before first use if the manufacturer recommends it, allow all items to dry fully and keep a spare set ready. Check the mattress protector and sheet after every wash to make sure they still fit smoothly.
Quick sizing checklist
- Measure the mattress, not just the cot-bed frame.
- Check the sheet dimensions and depth before ordering.
- Choose a protector made for the same mattress size.
- Make sure the fitted sheet stays secure after washing.
- Keep loose, padded and decorative items out of a baby's sleep space.
Shop our cot-bed fitted sheets, mattress protectors and baby bedding to find a comfortable, practical fit for every stage.
