Sign up for Theo's Pyjama Day...
Theo’s Pyjama Day is back for its fifth year, and we can’t wait to see everyone in their comfiest clothes to help make the difference.
Whether you wear a head-to-toe matching pyjama set or you opt for a simple eye mask, spending the day in your cosy clothes can help to change lives at Sheffield Children’s! Why not get your family, friends, colleagues, or school involved too?
Donate to take part or ask people to sponsor you, and spread the word to as many people as possible. It's as simple as that!
Sign up today and join Theo in wearing your pyjamas on Thursday 12 February 2026!
How to sign up…
1. Register today for free!
2. Tell us what day you will be wearing your PJs - Thursday 12 February or another date
3. Pick out your favourite pair of pyjamas and slippers
4. Ask family and friends to sponsor you or to donate £2 to take part.
5. Wear them for the day! Easy!
If you would prefer to make a one off donation rather than signing up to take part, we would still be so grateful for your support!
Meet Caleb and Faith
In October 2019, when Caleb was just 3 years old, he was diagnosed with Leukaemia. After two rounds of cancer, Caleb is now thriving thanks to the life-saving support of Sheffield Children’s and his sister, Faith.
By taking part in Theo's Pyjama Day, you are changing the lives of children like Caleb and Faith.
Read their full story below.
Caleb's Story
Top fundraisers
FAQs
How do I register to take part?
Just click on the register button on the homepage and away you go!
Is there a registration fee?
Registration is free! All that we ask is you try to raise as much as you can for the amazing hospital! We will send you lot of resources to help you.
Can I have fundraising materials?
Yes! If you would like any fundraising materials such as collection tins, posters, sponsor forms, balloons and charity information leaflets let us know and we can post these out to you. Contact the team at fundraising@sheffieldchildrens.org to tell us what you would like for your PJ Day fundraising!
Still have a question?
Contact us at fundraising@sheffieldchildrens.org or on 0114 321 2470. Our fundraising team are on hand to help you as quickly as possible!

