Two images of a baby in hospital and at home, wearing tiny baby size outfits with animal patterns. Dressed premature baby, in prem baby clothes, lying in a hospital NICU with medical equipment attached

4.9 Excellent

Premature baby clothes

in sizes 1.5lb-8lb
that are ideally sized
that are practical
that are comfortable
that are adorable

Biggest range in UK in sizes 1.5lb-8lb

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EST. 2017 | 40,000 CUSTOMERS

Founded by a NICU Nurse so you can shop with confidence

Welcome to the widest range of thoughtfully designed premature baby clothing & gifts, plus expert advice for families and gift buyers.

EST. 2017 | 40,000 CUSTOMERS

Shop premature baby clothes & baby gifts with confidence. Founded by a NICU Nurse 

     All collections

Premature Baby wearing a zebra-patterned outfit and hat on a soft surface

Clothes

Tiny baby sleeping bags

Sleeping bags

Newborn baby wrapped in a white blanket with a pattern, peeking out from behind it.

Pacifiers & bottles

Two knitted dinosaur toys, one blue and one pink, on a rug in a room with a shelf in the background.

Soft toys

Newborn prem baby sleeping peacefully with a floral headband and white knit cardigan.

Hats & headbands

Stay On Scratch Mittens - Country Garden (0-3 Months) Scratch Mitts Goumikids

Mittens

Stay-on baby booties

Booties, socks, tights

Stack of colorful baby blankets with labels on a wooden surface

Blankets

Collection of colourful NICU baby milestone cards with text on a white background

Milestone cards

MuslinZ Bamboo/Organic Cotton Swaddle Blanket Leopard Print - 120x120cm Muslin Muslinz

Muslins

Nattou Lapidou Piu Piu Octopus - Mustard Yellow - Toy - Nattou

Comforters

Person holding a book titled 'Brilliant Animals of Great Britain' with a child in the background.

Books & flashcards

Tiny baby hats

Clothing accessories

Gift Wrapping OF PREMATURE BABY GIFTS

Gift-wrap & card

Mineral Bath Infusion (Bergamot, Pomegranate & Orange Blossom) Parent Gift Banks-Lyon Botanical

Parents & sibling gifts

Organic dribble bibs for newborn babies

Bibs

Premature baby gift voucher

Vouchers

Premature baby clothes shop

DESIGNED WITH A NICU NURSE

NICU-friendly clothes

Supporting NICU families with more comfortable and practical clothing options than anywhere else.

Newborn baby in a white outfit and knitted hat with medical equipment nearby.

100'S OF OPTIONS IN PREMATURE & TINY SIZES

Premature & tiny baby size clothes (2b-8lb)

In neonatal care or not, pre-term babies need properly fitting smaller sizes. We stock a huge range of clothes in premature and small newborn sizes.

Newborn baby in a sleepsuit with whales on

BOUTIQUE BABY BRANDS AND IDEAL GIFTS

0-6 months (8lb+)

We've expanded beyond premature baby clothes and gifts, to offer bigger babies lots of adorable clothing options too.

All items can be gift-wrapped

Premature baby gift service

THOUGHTFUL GIFTS DELIVERED WITH LOVE

Gift Service

New baby gifts they’ll remember.
Chosen with care, delivered with love.

We make gifting effortless with beautiful presents, thoughtfully curated and sent straight to their door, right on time.

  • Over 40 cards to choose from
  • Wrapping paper or gift bag
  • We handwrite your message
  • Clothes, toys, blankets & more
  • VOUCHERS ALSO AVAILABLE
Little Mouse has been featured in the media

Choosing the right premature baby clothes can feel overwhelming, but the key is comfort, practicality, and fit. Premature babies are often too small for standard newborn sizes, so specialist premature baby clothing is designed with their delicate needs in mind.

We're able to offer you valuable advice on what premature baby clothes to buy and we produced a Premature Baby Clothes Gift Buyer's Guide.

Feel free to contact us too.

Look for soft, breathable fabrics that are gentle on sensitive skin and easy to wash. Many premature baby clothes also feature wrap-over fastenings or open fronts, making it easier to dress your little one without too much handling. If your baby is in neonatal care, clothing with simple access points is especially helpful for medical monitoring and comfort.

We stock a carefully chosen range of premature baby clothes in tiny sizes, from vests and sleepsuits to hats and mittens. Each piece is designed to keep babies warm, snug, and secure while still looking adorable.

Whether you’re a new parent or buying a gift, we’ll help you find premature baby clothes that are practical, comfortable, and perfectly sized for your little arrival.

We're able to offer you valuable advice on what premature baby clothes to buy and we produced a Premature Baby Clothes Gift Buyer's Guide.

Customers buying gifts typically choose clothing, plus a small toy, comforter or blanket. We have some suggested gift ideas here.

When buying clothes for a premature baby, comfort, practicality, and safety come first. Here are some of the best options to consider:

  1. Preemie-Sized Clothing
    Choosing the right size is essential. Our premature baby clothes come in four specialist sizes: 1.5lb–3lb, 3lb–5lb, 4lb–7lb, and 5lb–8lb, ensuring a snug and comfortable fit.
  2. Soft, Easy-to-Dress Outfits
    Kimono-style bodysuits with wrap fronts to avoid pulling over the head.
    Sleepsuits with zippers or poppers for warmth and quick changes.
    Side-snap tops with leggings, ideal for NICU babies with medical tubes.
  3. Fabric & Comfort
    100% cotton or organic fabrics for sensitive skin. Tag-free, seam-free designs with no scratchy materials for added comfort.
  4. Hats & Mittens
    Soft cotton hats to help retain body heat. Scratch mittens to protect delicate skin.
  5. NICU-Friendly Options
    Wrap-around bodysuits with Velcro or snaps for medical access. Incubator vests and gowns with open bottoms for ease of care.

With the right premature baby clothes, you can keep your little one safe, cosy, and comfortable.

What premature baby clothes a NICU baby can wear will depend on it's stage of development and it's current care. It's best to ask the medical team.

However many NICUs will allow NICU-friendly options such as incubator vests, gowns, and side-snap tops which allow for medical access and minimal handling. Accessories like soft hats and stay-on mittens help keep tiny babies warm and protected.

Read our full guide.

We know how sensitive premature babies’ skin can be. That’s why many of our premature baby clothes are made from organic cotton. Naturally soft and breathable, organic fabrics are kinder to delicate skin and less likely to trigger eczema, dermatitis, or allergies. They’re also mould resistant and antimicrobial, giving parents extra peace of mind.

While all our clothes are designed with comfort and safety in mind, choosing organic means choosing the purest fabrics for your little one. Discover our beautiful range of organic premature baby clothes – practical, protective, and irresistibly cute.

What makes us different?

We also give back to charities.

  • NICU Baby in a floral onesie with a pacifier, held by an adult.

    Accurate sizing

    Premature baby clothing is carefully curated by a NICU Nurse for sizing, practicality & comfort.

  • Collage of babies in various poses and outfits, including onesies, swaddles, and headbands.

    Biggest range in NICU, prem & tiny baby sizes

    More options than anywhere, from baby essentials to outerwear and accessories.

  • Newborn prem baby lying on a white blanket with a clear plastic wrap on its face.

    Premium & value brands

    Premature baby clothes & tiny baby sizes for all tastes and budgets.

  • Nurse holding a newborn baby in a hospital setting

    Valuable advice

    Get help with finding prem baby clothing and gifts with our guides.

Newborn baby being held by a woman in an operating room with medical staff.

Your purchases help us support premature baby charities

We make premature baby clothing donations to hospitals and individuals, support Tommy's (the baby charity) and source products from ethical suppliers that support charities and communities too.

Founded by a NICU Nurse
Little Mouse was founded by a Neonatal Nurse with a genuine desire to help family and friends of premature babies; and the fact we can make a living from doing so is a dream come true. As we grow we will do even more charitable work.

⭐️⭐️⭐️⭐️⭐️

"Beautiful clothes for my tiny grandson, when everything from elsewhere wouldn't fit!"
NICU Nurse holding tiny baby clothing

Our story

EST. 2017 | 40,000 CUSTOMERS

Founded by a NICU Nurse in 2017, we understand the challenges of finding premature baby clothing that's soft, safe, and easy to use for the tiniest babies.

That's what inspired us to create Little Mouse. Our mission is to make this part of the journey a little easier with our thoughtful collection of premature, NICU-friendly clothing, and new baby gifts.

Premature baby clothing advice for shoppers

Premature baby clothing advice

Can you help me choose premature baby clothes?

It's really important to buy the right premature baby clothes and gifts. Preemie baby clothes needs to fit well and be practical; especially if baby is in the NICU or SCBU. Founded by a NICU Nurse, we're able to offer you valuable advice on what premature baby clothes to buy and we produced a Premature Baby Clothes Gift Buyer's Guide.

We've also created Preemie Baby Gift Boxes to help make buying a gift of premature baby clothes, toys, blankets and cards as convenient as possible.

What clothes will a premature baby wear?

What premature baby clothes a tiny baby can wear will depend on it's stage of development and it's curent care i.e. is baby in the hospital NICU or SCBU or not. This will determine if a premature baby just wears an incubator vest or premature baby sleepsuithatmittstiny baby snowsuit, etc.

Ultimately, it's most important that a premature baby's temperature is regulated and it is comfortable. Dressing with premature baby clothing should cause minimal disturbance, and layering items is recommended when baby is out of the incubator.

Once a preemie baby is able to come home you will probably need tiny baby clothes. Our tiny baby clothing is size 4lb-7lb or 5lb-8lb.

Gift buying advice

What premature baby clothes make a good gift?

When buying clothes for a premature baby, comfort, practicality, and safety are key. Here are some great options:

1. Preemie-Sized Clothing

  • Choosing appropriately sized clothing for a premature baby is really important.
  • We offer 4 premature and tiny baby sizes: 1.5lb-3lb, 3lb-5lb, 4lb-7lb and 5lb-8lb.

2. Soft, Easy-to-Dress Outfits

  • Kimono-style bodysuits (snap or wrap-front) to avoid pulling over the baby’s head.
  • Sleepsuits with zippers or poppers for warmth and easy changes.
  • Side-snap tops with leggings (especially for NICU babies with medical tubes).

3. Fabric & Comfort

  • 100% cotton or organic fabrics (gentle on sensitive skin).
  • Tag-free, seam-free, and no scratchy materials for extra comfort.

4. Hats & Mittens

  • Soft cotton hats to help with heat retention.
  • Scratch mittens to prevent the baby from scratching their delicate skin.

5. NICU-Friendly Options (If the baby is in the hospital)

  • Wrap-around bodysuits with Velcro or snaps (to accommodate monitors and tubes).
  • Incubator vests and gowns with open bottoms for easy medical access.

What alternatives to clothing could I buy for a tiny baby?

Buying a gift for a premature baby requires extra thought since they may have specific needs. Here are some thoughtful and practical gift ideas:

Comfort Items for Baby & Parents

  • Preemie swaddle blankets (Soft, breathable fabric for comfort)
  • Muslin cloths (Great for gentle swaddling or burping)
  • Kangaroo care wrap or skin-to-skin top (Encourages bonding and warmth)

Developmental & Sensory Gifts

  • High-contrast black & white baby books (Supports visual development)
  • Soft, plush comforter toy (NICU-approved small cuddle cloths)
  • Soothing white noise machine (Helps mimic the womb’s sounds)

Practical & Thoughtful Gifts for Parents

  • Hand cream & lip balm (Hospitals can be drying)
  • Pre-made meals or food delivery vouchers (A lifesaver for tired parents)
  • Personalized milestone cards for preemies (Celebrates small but big moments)

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