Cot vs Cot Bed Fitted Sheets: 120x60cm or 140x70cm?
By For Your Little One | Published: 2026-11-01
Category: Tips & Care
Measure before you buy: match 120x60cm sheets to a cot and 140x70cm sheets to a cot bed, then use the FAQ answers to plan spares and washing.
Quick answer
Buy sheets that match your mattress's measured size: 120x60cm for a cot and 140x70cm for a cot bed. Check the label or tape-measure the mattress before ordering, because the two sizes are not interchangeable.
Why the mattress size decides the sheet, not the furniture name
Retailers use 'cot' and 'cot bed' loosely, and some cots accept a larger mattress than the standard 120x60cm. The sheet only stays smooth and secure if its corners match the mattress corners, so measure length and width with the mattress flat and in place. If your measurement sits between sizes, choose the sheet made for your exact mattress rather than sizing up to allow for shrinkage.
Where 120x60cm and 140x70cm sheets differ in practice
A 120x60cm sheet is sized for a cot mattress; a 140x70cm sheet is sized for a cot bed mattress. The extra 20cm in length and 10cm in width on the cot bed size means a cot sheet will not stretch to fit and a cot bed sheet will bunch on a smaller mattress. Bunching matters because loose fabric can ride up around a baby, so fit comes before stockpiling a particular size.
Cot sheet size and care questions answered
- How do I confirm my cot fitted sheet size?
- Measure the mattress length and width, not the cot frame. A mattress measuring 120x60cm takes cot sheets 120x60cm; one measuring 140x70cm takes cot bed fitted sheets 140x70. Check any brand or model label on the mattress as a second confirmation. Write the measurement on a note in your phone before you shop so you do not rely on the furniture's name.
- Will 120x60cm sheets fit a 140x70cm cot bed mattress?
- No. The cot sheet is 20cm shorter and 10cm narrower, so it cannot reach around the corners of a cot bed mattress. Use 140x70cm sheets for that mattress instead.
- How many cot sheets do I need?
- Two sheets per bed is the practical minimum: one on the mattress and one clean spare for changes. A four-pack gives more breathing room for night-time leaks, illness or a wash cycle that runs late. If you use two beds of different sizes, count spares separately for each size. Keep at least one spare per mattress size, not per child, so a change never waits for laundry.
- How should I wash cot sheets?
- Follow the care label on the sheet. Wash sheets separately from towels and anything with hooks or zips that can snag fabric, and use the cycle and temperature the label states. Check the sheet is fully dry before putting it back on the mattress. Wash the spare set first so a clean sheet is always ready while the other is drying.
- Why do my fitted sheets feel tight after washing?
- Some fabrics shrink slightly with heat, and a hot wash or tumble dry can make a correctly sized sheet harder to stretch over the corners. If the care label allows, use a cooler wash and air-dry the sheet. Do not size up to compensate, because an oversized sheet will not sit flat.
- Can I use these sheets with a Babylo mattress?
- The 120x60cm pack is described as compatible with a Babylo mattress of that size, and the 140x70cm pack with a Babylo mattress of that size. Match the pack to your mattress measurement and confirm the mattress label before ordering. Compatibility is stated by mattress size, so the tape measure is still the deciding check.
Babylo-compatible sheet options
- 4x Cot Bed Fitted Sheets Compatible with Babylo Mattress 140x70cm: Four 140x70cm cot bed fitted sheets in one pack, in a choice of colours. A four-pack suits a cot bed used every night, giving you spares for wash day without buying singles.

4x Cot Bed Fitted Sheets Compatible with Babylo Mattress 140x70cm - 2x Cot Fitted Sheets Compatible with Babylo Mattress 120x60cm: Two 120x60cm cot fitted sheets in one pack, in a choice of colours. The two-sheet pack covers a cot with one sheet in use and one in the wash, which is often enough for a smaller bed.

2x Cot Fitted Sheets Compatible with Babylo Mattress 120x60cm

