Schoolfriends of a car crash survivor's sister are organising a sponsored pyjama walk to raise money for his care and for emergency services.
Teenagers Jack Boyton, 17, Ashley Jones, 19, and Harry Ferrand, 17, were killed in a car crash on the A10 last month.
Their friend Liam Bradshaw, 17, who lived on the Elsinge Estate, in Enfield, survived the crash and remains in a critical but stable condition in hospital.
On Sunday December 9 more than 70 people will be taking part in a sponsored walk from the Faces Night Club in Hoddesdon to Kempe Hall, in Kempe Road, Enfield, in their pyjamas.
The 7.7-mile walk has been organised by Gemma Grainger, 25, and her sister Natalie, 28 - who are schoolfriends of Mr Bradshaw's sister - to raise money for his recovery treatment and for the emergency services which helped at the scene.
Natalie said: “It is really important to show the family some support from the community and that we are all behind them.
“We hope walking in our pyjamas will be a way for us to cheer people and make them smile up after such a horrible time.”
After the walk at the hall in Enfield refreshments will be on offer for all those who took part in the night-time walk.
Those wanting to contribute money to the fund can do so by going online to www.gofundme.com/1jj9es