Zip-up Sleepsuits

Keep your baby comfy, cosy and safe with Little Seeds zip-up baby sleepsuits, designed for easier nights and happier mornings.

Super soft and gentle on skin
Made from 100% organic cotton or our 70% bamboo / 30% organic cotton blend, our sleepsuits are soft and breathable, perfect for sensitive baby skin.

Easy night-time changes
A concealed two-way zip opens from the top or the bottom, making middle-of-the-night nappy changes quicker and less disruptive.

Built-in scratch mitts
Fold-over mitts on smaller sizes help prevent accidental scratches while keeping tiny hands warm.

Feet in or out
With feet up to 9 months and without feet over 9 months, for comfort as your baby grows.

Choosing Baby Sleepsuits

Sleepsuit or baby grow?

They’re the same thing. In the UK a sleepsuit, baby grow and all-in-one all mean a long-sleeved, full-length outfit that babies wear day and night.

How many sleepsuits does a newborn need?

Most parents find 6 to 8 sleepsuits in each size is enough, so you have spares for nappy leaks and wash days. Babies grow quickly, so it’s worth having a few in the next size up ready.

Which size should I buy?

Our sleepsuits come in 0–3, 3–6, 6–9 and 9–12 months, with 12–18 months in some designs. Go by your baby’s age and size, and if they’re between sizes, choose the bigger one.

Organic cotton or bamboo?

Both are soft and breathable. 100% organic cotton is a classic everyday choice, and our bamboo and organic cotton blend feels extra soft and silky.

What can my baby wear with a sleepsuit at night?

Sleepsuits fit comfortably under our organic cotton sleeping bags, with a bodysuit underneath on colder nights. Our baby sleeping bag guide shows what to layer for the temperature of the room.

Zip-up Sleepsuits
Clear all

7 products

Filter and sort

Filter and sort

7 products

Clear all
Clear all

7 products

FAQs

You may wonder what amount of layering is best for your baby when dressing them in their sleepsuit, ready for bed. This depends on the room’s temperature, and on colder nights, parents may opt for a light cotton bodysuit underneath the sleepsuit. On warmer nights, one layer is usually enough. The general rule is to ensure your baby wears one extra layer than what you're comfortable wearing in that room. Remember to ensure these layers are made of breathable fabric, such as organic cotton, and keep a close eye on your baby’s temperature through touch if unsure. 

Little Seeds’ unisex bodysuits come in packs of three up to the age of 12 months and are made of 100% organic cotton. 

As Little Seeds’ sleepsuits are incredibly durable, breathable and easy to wash and dry, parents should only need a few for each newborn. But for those worried about nighttime spillages (of any kind), stocking up on a few more could be a handy idea. This gives parents more of a buffer when it comes to needing to keep on top of the washing.