Premature baby being held in a hospital NICU wearing a green knit hat and receiving support through a nasal feeding tube

Premature baby wearing a yellow knit hat resting skin-to-skin on a parent’s chest in a NICU setting

Simply Preemie

Premature Baby Clothes UK

Premature baby clothes in sizes 1lb–8lb, designed for comfort, safety, and NICU care.
Thoughtfully created to help parents find clothing that truly fits from the very beginning.

Soft, gentle fabrics for delicate skin
Designed for easy dressing and medical access
Available in sizes from micro preemie to tiny baby

Finding clothes that truly fit a premature baby can be difficult, especially when standard newborn sizes are too big. At Simply Preemie, we specialise in clothing for premature babies, helping parents find clothing that fits properly from the very beginning.

Choosing the right clothing starts with finding the correct size. You can explore our preemie clothing size guide to understand which sizes are right for your baby.

Understanding how premature babies grow can also help when choosing sizes — see our guide on how fast premature babies grow.

Premature baby sleeping beside soft neutral baby clothes

Shop Premature Baby Clothes by Size

Our ranges are designed by weight, making it easier to find the right fit:

Micro Preemie Clothes (1–3lb) – for the smallest and most delicate babies
Browse micro preemie clothes
Early Baby Clothes (3–5lb) – ideal for growing premature babies
Browse early baby clothes
Tiny Baby Clothes (5–8lb) – for babies nearing newborn size but still needing a smaller fit
Browse tiny baby clothes

If you're unsure which size to choose, starting smaller is usually the safest option. You can also view our preemie clothing size guide for more detailed help.

NICU-Friendly Premature Baby Clothing

When your baby is in the NICU, clothing needs to work alongside medical care. Our premature baby clothes are designed to support this:

Easy access for wires, monitors, and tubes
Soft fabrics to protect sensitive skin
Practical fastenings for quick and gentle changes
Comfortable designs suitable for long periods of wear

For more guidance, see our NICU clothing rules guide.

Preemie organic cotton vest soft fabric detail for premature babies

Soft, Safe Fabrics for Premature Babies

Premature babies have extremely delicate skin, so fabric choice matters. Our clothing is made from soft, breathable materials that help keep your baby comfortable without irritation.

Gentle cotton fabrics
Lightweight, breathable materials
Designs that help regulate temperature

Learn more in our guide to the best fabrics for preemie clothes.

What Size Is Considered Preemie?

Premature baby clothing is usually sized by weight rather than age.

Micro preemie: 1–3lb
Early preemie: 3–5lb
Tiny baby: 5–8lb

Most standard newborn clothing starts at around 7–8lb, which is why specialist preemie clothing is often needed for smaller babies. Understanding how premature babies grow can also help when choosing sizes — see our guide on how fast premature babies grow.

What Clothes Does a Premature Baby Need?

Most parents start with a small number of essentials:

Bodysuits and vests
Sleepsuits
Hats and mittens
Blankets and layering pieces

For a more detailed breakdown, see our preemie clothing checklist guide.

It's best to begin with a few well-fitting items and add more as needed.

Why Parents Trust Simply Preemie

Simply Preemie was founded by Rachael, whose son Theo was born at 28 weeks. That experience shapes everything we do. You can read Theo's story here.

Designed specifically for premature babies
Built from real experience of dressing a premature baby
Focused on comfort, safety, and practicality
Supporting families through NICU and beyond

Frequently Asked Questions

What size clothes do premature babies wear?

Premature babies are usually sized by weight rather than age. Smaller babies may need micro preemie sizes, while larger premature babies may fit early or tiny baby ranges.