How to Fit a Cashmere Waffle Bedding Set to Cribs and Co-Sleepers
By Cuddleco | Published: 2026-11-01
Category: How-to Guides
A practical step-by-step guide to fitting the Universal Crib/Co-Sleeper Bedding Set in Cashmere Waffle, with checkpoints for a safe, smooth fit every time.
Quick answer
Fit the fitted sheets one at a time by anchoring all four elasticated corners before smoothing the middle, then add the comforter blanket only after the sheets lie flat and secure. Always check that the sheet cannot be lifted away from the mattress at any corner.
Why elasticated corners matter more than sheet size
A universal crib bedding set relies on elasticated edges rather than a precise mattress measurement to stay in place. That means the fit is only as good as how you stretch and seat each corner. If one corner is left loose, the sheet can ride up during the night, creating a loose layer that is a suffocation risk for babies.
The Cashmere Waffle set includes two fitted sheets and one comforter blanket, so you can keep one sheet in use while the other is washed. Treat each sheet as a separate fitting job rather than rushing both at once.
When a co-sleeper mattress is thinner than expected
Co-sleeper mattresses are often slimmer than standard crib mattresses, so the elastic may feel looser underneath. In that case, tuck the excess fabric under the mattress rather than leaving it bunched at the sides. Never use extra clips, straps or aftermarket tighteners, as these can interfere with the mattress-to-crib seal.
If the sheet still lifts easily at a corner after tucking, the mattress may be too thin for a secure universal fit. In that situation, check your co-sleeper’s manual for the recommended sheet type rather than forcing the fit.
Step-by-step fitting process
- Start with a bare, clean mattress: Remove all previous bedding and wipe the mattress surface if needed. Check that the mattress sits flat and snug inside the crib or co-sleeper frame before adding any sheet. A mattress that shifts inside the frame will prevent any sheet from fitting securely.
- Place the sheet over one end first: Lay the fitted sheet over the mattress with the elasticated corners aligned to the head end. Hook the two corners at that end under the mattress, one at a time, pulling firmly but not tearing the elastic. Anchor the end nearest you first so you are not reaching across a loose sheet.
- Secure the opposite end: Move to the foot end and hook the remaining two elasticated corners under the mattress. Work from one corner to the other rather than pulling both at once, which can twist the sheet. Check that the sheet’s seams run straight along the mattress edges, not diagonally.
- Smooth the centre and check the fit: Run your hand from the centre of the sheet outwards to remove any bunching. Then lift each corner gently: the sheet should spring back and stay hooked. If any corner releases easily, re-seat it before continuing. A secure sheet cannot be lifted more than a couple of centimetres at any corner.
- Add the comforter blanket last: Once both sheets are fitted and checked, lay the comforter blanket over the sheet. Keep it away from the baby’s sleep area if your baby is under 12 months, and use it only for supervised tummy time or as a pram layer. Never tuck a loose blanket under a baby or use it as a mattress cover.
Product facts
- Universal Crib/Co-Sleeper Bedding Set - Cashmere Waffle: Made from 100% cotton with elasticated edges, and includes one comforter blanket plus two universal crib/co-sleeper fitted sheets. The cotton base is breathable for your baby’s first bed, and having two sheets means you can rotate one for washing without leaving the mattress bare.
Universal Crib/Co-Sleeper Bedding Set - Cashmere Waffle
