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Blue under the sea birthday pjs
£17.00
Make bedtime extra magical with our Under the sea Birthday Pyjamas, featuring a cute and playful design perfect for birthdays and special occasions.
Made from 100% cotton, this set is breathable and gentle on young skin, keeping little ones comfortable all night long. Designed with long raglan sleeves and a soft striped style, they offer both comfort and a stylish look.
- 🌊 Under the sea themed birthday design
- 🎂 Perfect for birthdays & special occasions
- 👕 100% cotton – soft & breathable
- 🌙 Long sleeve pyjama set for extra comfort
Washing Instructions
To keep your pjs looking their best:
- Wash inside out to protect the print
- Machine wash at 30°C
- Use mild, eco-friendly detergent where possible
- Do not bleach
- Do not tumble dry
- Iron inside out on low heat
Delivery provided by EVRI or Royal Mail. Delivery is an estimate and not guaranteed.
We only accept returns on faulty garments or ones which are incorrect through no fault of your own. To check if you can refund, please email us at refund@firstlovedesigns.co.uk and one of our team will be in touch.
Frequently Asked Questions
We only accept returns on faulty garments or ones which are incorrect through no fault of your own. To check if you can refund, please email us at refund@firstlovedesigns.co.uk and one of our team will be in touch.
If your item arrives faulty, contact us with your order details and photos so we can help quickly.
Once your return is received and checked, we'll confirm the outcome by email.
We post via EVRI or via Royal Mail. All deliveries include a tracking number.
We charge the set up fee to have your logo digitised for embroidery. If you already have an embroidery ready logo file, please email us before ordering.
We print on garments using the latest "DTF" technique. This allows long lasting, high quality printing which suits your needs.
We accept all major credit and debit cards, Apple Pay, Google Pay and Paypal.
We aim to process orders in a swift and timely manner, however the delivery date shown is an ESTIMATE only and not a guarantee. We will always aim to process your order in a timely manner.
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View The Size Guide For This Garment
| Top & Bottoms size chart | Ref | 6/12mths | 1/2y | 2/3y | 3/4y | 4/5y | 5/6y | 7/8y | 9/10y |
|---|---|---|---|---|---|---|---|---|---|
| Chest - 2.5cm below armhole | A | 26.5 | 28.5 | 30 | 32 | 33.5 | 34.5 | 35.5 | 36.5 |
| Length - SNP to hem | B | 35 | 37.5 | 41 | 45 | 49 | 51 | 53 | 55 |
| Waist - relaxed | C | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| Hips - widest part | D | 29 | 30.5 | 32 | 33 | 35 | 36 | 37 | 38 |
| Outside Leg - inc waistband | E | 41 | 44.5 | 50.5 | 57 | 63.5 | 70 | 77 | 84 |

