Premature baby being held in NICU wearing a green knit hat with a nasal feeding tube

Premature Baby Clothes That Actually Fit

Every piece in our premature baby clothing range is chosen by Rachael, a NICU mum who knows exactly what those first fragile days feel like. Soft fabrics, thoughtful sizing, designs that work in the NICU and at home.

Shop All Preemie Clothes
Founded by a NICU mum Theo was born at 28 weeks
Sizes 1lb–8lb Designed for preemies
Free UK shipping On orders over £40
30-day returns No quibbles
Premature baby in skin-to-skin contact wearing a yellow knit hat in NICU

More Than a Premature Baby Clothing Brand

Everything a Preemie Family Needs, in One Place

Guides and Advice Practical guidance for every stage — written from experience
Tools and Calculators (free) Practical tools built for preemie parents
Find Support The support organisations every NICU family should know about
Stories and Facts Real stories and facts to remind you what is possible

Shop Premature Baby Clothes by Size

Browse our full range of premature baby clothes by your baby's weight, or use our size guide if you're not sure what to choose.

Rachael and her son Theo smiling together in a studio portrait

Theo's Story

Theo was born at 28 weeks, weighing just 600g, and spent 101 days in NICU.

His mum, Rachael, created Simply Preemie after struggling to find clothes that truly fit him.

Every piece in our range is chosen with that experience in mind.

Read Theo's Story
Guides & Advice

Premature Baby Knowledge Hub

Caring for a premature baby in NICU and beyond comes with a lot of questions. Our knowledge hub brings together clear, practical guides on premature baby clothing, sizing, and growth, written with NICU parents in mind.

Practical Tools

NICU Support Tools

Practical tools to help you feel prepared and supported through your NICU journey.

Create & Celebrate Premature Baby Milestones

Celebrate the moments that matter. Create personalised premature baby milestone cards, NICU keepsakes, and shareable quote cards to mark your baby's journey.

Ronald McDonald House Manchester where Rachael and James stayed during Theo's 101 days in NICU
Ronald McDonald House Charities logo

The House That Became Our Home for 101 Days

When Theo was transferred to Saint Mary's NICU in Manchester, Ronald McDonald House gave us somewhere to sleep, eat, and breathe, just minutes from his incubator. For 101 days, it was our home. We want every NICU family to know it exists.

"From the most frightening experience of our lives came the clearest sense of what matters and who shows up when it does."
How Ronald McDonald House Helped Us

Preemie Facts That Gave Us Hope

"When Theo was in his incubator, I searched for anything that told me it could be okay. These are the facts that helped."

21 weeks gestation

Nash Keen

Given 0% chance of survival. Spent 198 days in NICU. Went home January 2025 and celebrated his first birthday in July.

212 grams at birth

Kwek Yu Xuan

The world's lightest surviving baby — roughly the weight of an apple. Spent 13 months in NICU. Went home healthy.

1 pound at birth

Tyson Fury

Born in Manchester. Died three times in the incubator. Grew up to become World Heavyweight Boxing Champion.

34 weeks gestation

Stevie Wonder

Born six weeks premature in 1950. Won 25 Grammy Awards and became one of the most celebrated musicians in history.

25 weeks gestation

David Silva

Son Mateo born December 2017 — the same month City players visited Theo's NICU ward at Saint Mary's Manchester.

24 weeks gestation

Ben Mee

Daughter Olive born at 1lb 2oz. "We looked online for positive stories and struggled to find any." That is why we built this page.

NICU Community

Real Preemie Stories from NICU Parents

Every premature baby journey is different. Read real NICU stories from parents who have been there.

Get In Touch

Need Help Choosing Premature Baby Clothes?

We're here to help you find the right fit for your premature baby. Get in touch with Rachael directly.

Frequently Asked Questions

What clothes does a premature baby wear?
Premature babies need specially designed clothing that is soft, gentle, and perfectly sized for their tiny bodies. Preemie baby clothes are usually made with delicate fabrics, easy fastenings, and designs that allow for medical equipment if needed.

Read our complete guide to preemie baby clothes.
How do I choose the right size clothes for my premature baby?
Choosing the right size depends on your baby's current weight rather than age. Most premature baby clothing is sized by weight ranges such as micro preemie, early baby, and tiny baby sizes.

Read our preemie clothing size guide.
How many clothes does a premature baby need?
Most premature babies only need a small number of well-fitting clothes at first, usually around five to seven essentials such as bodysuits and sleepsuits.

Read the full guide on how many preemie clothes you need.
Are your clothes suitable for NICU use?
Many of our clothes are suitable for NICU use, with soft fabrics and easy access for medical equipment.

Read the NICU clothing rules for premature babies.
Should I choose organic cotton clothes for my premature baby?
Organic cotton is gentle on delicate skin and free from harsh chemicals.

Learn about the best fabrics for premature baby clothes.
How long does delivery take?
Most UK orders arrive within a few working days. We dispatch as quickly as possible so you receive items when you need them most.

"Everything I wish someone had explained to me in those early days."

"No family should have to navigate this alone. These are the people who helped us."

"Because sometimes a single fact changes everything."

"Everything I wish someone had explained to me in those early days."

"No family should have to navigate this alone."

"Because sometimes a single fact changes everything."