Itty Bitty Baby Clothing size guide

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Better for baby's delicate skin
Babies have delicate skin, especially premature babies because their dermis - which is the last layer of skin - is not completely formed. Organic cotton is gentle and kinder to a baby's skin.

There is less of a chance of baby developing skin conditions such as eczema, dermatitis and skin allergies. It is mould resistant and antimicrobial too.

Better quality and longer lasting
Because the fibres have not been damaged by chemicals during production, the quality of the cotton is superior. Therefore, clothing made from organic cotton should last longer than those made of conventional cotton.

Better for the planet
For environmentally conscious shoppers there's no doubt that choosing to buy organic cotton clothing is better for the world. Organic cotton farming is less polluting, uses less energy and water, and the health of workers is also not compromised.

So why do we sell non-organic cotton clothing too?
Many of our products are organic, but you do pay a premium for premium products. So to offer a range of value priced items too, we also sell a lot of standard cotton clothing, with no complaints.

It really is down to how sensitive baby's skin is, personal preference, and budget.

Buying clothing for a baby in a hospital NICU/SCBU?
Get advice

Buying a gift?
See our Gift Buyer's Guide.

Writing a card?
What to write in a card for a premature baby. Get tips

UK delivery

Standard, 2-4 days
FREE over £40+ or £2.99

Priority, 1-2 days
£3.99

Next Day by 1pm
£6.99 or FREE for orders £120+

Not home?
UK delivery is by Royal Mail and it's easy to arrange redelivery or collection from a local post office if required.

Full delivery details

International delivery

From £8.95.
Full delivery details

Gift-wrap from £1

Gift-wrap: Wrapped in tissue, wrapping paper or a gift bag. Details
Card with message: We have lots of cards to choose from and can handwrite a message for you. Details

No-quibble 30 day returns

Full details

Better for baby & the planet

When we founded Little Mouse we said "we’ll do business the right way, in a kind way."

We treat our customers how we’d wish to be treated ourselves. That’s why we offer products we’re proud of, helpful advice, careful packaging, and personal customer service.
We work in partnership with our suppliers and prioritise suppliers with strong ethics.
We do right by our staff, with fair pay, flexibility, and nice working conditions (our little team is all family and close friends!).
We limit our impact on the environment with our packaging and delivery choices and lots of organic options.

Eco-conscious packaging & delivery

RECYLABLE - All orders will be packaged in a recyclable box or a craft paper bag.
PLASTIC-FREE - No plastic packaging or excess material or paperwork.
LETTERBOX FITTING - A letterbox fitting box is used where possible which minimises CO2 with 1st time delivery.
LOW CO2 DELIVERY - UK delivery is by Royal Mail who have the least CO2 per parcel of all major UK carriers and are very reliable.

We give back

Your purchases help us support baby charities, individuals and communities.

We make 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.

Our suppliers

We are mindful that the fashion industry is tarnished by brands using child labour and environmentally unfriendly practises. We want nothing to do with this and make efforts to choose suppliers that reflect our values. The majority of our clothing is made with organic cotton, and most of our brands have strong sustainability policies and give back to communities or charities.

Length measurements are from baby's top of head to toe (not length of garment). We very rarely get items from this brand returned.


Baby's weight	3lb-5lb	5lb-8lb
Baby's length (aprox)	38-42cm	42-46cm

Length measurements are from baby's top of head to toe (not length of garment).

This is our most popular brand and we very rarely get items returned.


Baby's weight	1.5lb-3lb	3lb-5lb	4lb-7lb
Baby's length (aprox)	26-32cm	32-38cm	38-44cm

Length measurements are from baby's top of head to toe (not length of garment).

This brand is quite a snug fit, which is typically a good thing! (unlike many high street brands).

This is a popular brand and we very rarely get items returned.


Baby's weight	1.5lb-3lb	3lb-5lb	4lb-7lb
Baby's length (aprox)	26-32cm	32-38cm	38-44cm

Length measurements are from baby's top of head to toe (not length of garment).

This brand is a wider fit than brands like Tiny & Small, Fixoni and Noppies.


Baby's weight	1.5lb-3lb	3lb-5lb	5lb-8lb
Baby's length (aprox)	26-32cm	34-40cm	40-46cm

Length measurements are from baby's top of head to toe (not length of garment).

This brand is quite a snug fit, which is typically a good thing! (unlike many high street brands).

This is a popular brand and we very rarely get items returned.

Baby's weight

3lb-5lb

4lb-7lb

5lb-8lb

Baby's length (aprox)

32-38cm

38-44cm

40-46cm

Length measurements are from baby's top of head to toe (not length of garment).


Baby's weight	1.5lb-3lb	4lb-7lb	5lb-8lb
Baby's length (aprox)	26-32cm	38-44cm	40-46cm

Length measurements are from baby's top of head to toe (not length of garment).

This brand is quite a snug fit, which is typically a good thing! (unlike many high street brands).


Baby's weight	1.5lb-3lb	3lb-5lb	4lb-7lb
Baby's length (aprox)	26-32cm	32-38cm	38-44cm

Length measurements are from baby's top of head to toe (not length of garment).


Baby's weight	3lb-5lb	4lb-7lb	5lb-8lb
Baby's length (aprox)	32-38cm	38-44cm	40-46cm

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UK delivery

International delivery

Gift-wrap from £1

No-quibble 30 day returns

Better for baby & the planet

Eco-conscious packaging & delivery

We give back

Our suppliers

Itty Bitty Baby Clothing size guide

Free UK Delivery

30-day Returns

Eco-packaging

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We also operate thoughfulbabygifts.co.uk

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