Cot Bed Jersey Fitted Sheets 140x70cm: Pack of 4 Care Guide
By For Your Little One | Published: 2026-11-02
Category: Tips & Care
A practical wash-and-fit routine for 140x70cm cotton jersey cot bed sheets, including how to handle a pack of four so each sheet lasts through nightly changes.
Quick answer
Wash your cot bed jersey fitted sheets at 40°C with a gentle detergent, tumble dry on low or air dry, and fit them by anchoring all four corners before smoothing the middle. Rotate all four sheets in the pack so each one wears evenly.
Why jersey needs a gentler routine than woven sheets
Jersey is a knitted cotton fabric, so it stretches to follow the mattress and feels softer against skin than a flat woven sheet. That stretch is helpful for a snug cot bed sheet fit, but it also means heat and harsh washing can relax the elastic or distort the shape over time. A mild detergent and a low dryer setting protect the knit without shortening the sheet's life.
When a 140x70cm sheet will not fit
A 140x70cm cot bed sheet is sized for a 140x70cm mattress, not a 120x60cm cot mattress. If the corners pull up or the middle tents, check the mattress label before stretching harder. Jersey will give a little, but forcing a sheet that is the wrong size puts strain on the seams and elastic. If your mattress is a different size, choose a sheet made for that measurement instead.
Step-by-step: wash, dry and fit your cot bed sheets
- Check the mattress size first: Measure the mattress or read its label to confirm it is 140x70cm before washing a new sheet. Common mistake: assuming all cot bed mattresses are the same size, then stretching a 140x70cm sheet over a 120x60cm mattress. If the label says 120x60cm, stop and source the correct size.
- Pre-wash separately: Wash new cotton jersey sheets once on their own at 40°C before first use to remove any manufacturing residue. Common mistake: washing them with towels or zip-up sleepsuits, which can catch the knit. Fasten any zips or hooks on other items before adding them to a later load.
- Choose a gentle wash cycle: Use a mild, non-biological detergent on a gentle or cotton cycle at 40°C. Avoid chlorine bleach and fabric softener, which can coat the cotton fibres and reduce breathability. Common mistake: overdosing detergent, which leaves residue that feels stiff against a baby's skin. If the sheet feels stiff after washing, reduce the detergent dose next time.
- Dry on low or air dry: Tumble dry on a low heat setting or hang the sheet to air dry. High heat is the main cause of shrunken jersey and slackened elastic. Common mistake: leaving the sheet in the dryer after the cycle ends, which sets wrinkles. Remove the sheet while it is still slightly damp and smooth it flat to finish drying.
- Fit the corners before the middle: Place the sheet over the mattress and anchor two opposite corners first, then the remaining two. Smooth from the centre outwards so the jersey stretches evenly. Common mistake: pulling one corner too hard, which lifts the opposite corner. Run a hand around the whole edge to confirm no corner is under tension.
- Rotate all four sheets: Number or stack the pack of four cot bed sheets and use them in rotation rather than reaching for the same one each time. Common mistake: washing only one sheet repeatedly, which wears out its elastic while the others sit unused. Keep one clean sheet folded in the nursery as an emergency spare.
Product facts
- Cot Bed Jersey Fitted Sheets 100% Cotton 140x70cm - Pack Of 4: Cot Bed Jersey Fitted Sheets 100% Cotton 140x70cm – Pack Of 4, available in a choice of colours. A four-pack lets you keep one sheet on the bed, one in the wash and two spare, so a nighttime change never waits for laundry.

Cot Bed Jersey Fitted Sheets 100% Cotton 140x70cm - Pack Of 4
