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

Premature Baby Clothes That Actually Fit

Q: How do I choose the right size clothes for my premature baby?

Choosing the right size preemie baby clothes usually depends on your baby's current weight rather than their age. Most premature baby clothing is sized by weight ranges, such as micro preemie, early baby, and tiny baby sizes.

Q: Are your clothes suitable for NICU use?

Many of our preemie baby clothes are suitable for NICU use because they are designed with soft fabrics, gentle fastenings, and easy access for medical equipment such as tubes and monitors.

Q: Should I choose organic cotton clothes for my premature baby?

Organic cotton preemie baby clothes can be a great choice because they are made without harsh chemicals and are especially gentle on delicate, sensitive skin.

Q: How long does delivery take?

Delivery times vary depending on your location, but most UK orders arrive within a few working days. We aim to process and dispatch all preemie baby clothing as quickly as possible.

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

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

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.

Micro Preemie (1lb–3lb) Early Baby (3lb–5lb) Tiny Baby (5lb–8lb)

Premature Baby Organic Cotton Sleepsuit – Woodland Walk - premature baby clothing

Premature Baby Organic Cotton Sleepsuit – Winter Woodland - premature baby clothing

Premature Baby Organic Cotton Sleepsuit – Sage Stripe - premature baby clothing

Premature Baby Organic Cotton Sleepsuit – Rainbow Stripe - premature baby clothing

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.

Explore the Knowledge Hub

Practical Tools

NICU Support Tools

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

NICU Hospital Bag Checklist NICU Terminology Guide Premature Baby Calculators

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.

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.

Create Milestone Cards Create NICU Homecoming Certificate Create NICU Quote Cards