We only list UK sizes. If you're not sure what your UK size is, please click on ‘Size advisor’ or review our size guides.
For babies born a little early, our premature sleepsuits are designed to be extra comfortable and delicate. Made from 100% cotton, these sleepsuits also have flat seams and soft labels to avoid irritation. They make dressing little ones as easy as possible, opening up flat and fastening around them with gentle hook and loop fastenings. Our cotton sleepsuits come in a handy three-pack so you’ll always have a spare.
35 days to return - You may return unused products within 35 days of purchase with a valid parcel summary document. Your items don't need to be in the original box or bag as long as they're securely packaged.
How to return
1. FREE returns to select M&S stores
2. Easy returns from home. Simply print the returns label, attach it to the top of your parcel and insert the returns note in the parcel. We will automatically deduct the cost of return from your refund. To print the returns label and return, simply click here.
Standard Delivery: FREE over €45 (usually €4), 6-8 working days
Express delivery: FREE over €75 (usually €6), 3-5 working days
Store collection: FREE to collect in select stores, 6-8 working days