Helpfully (
) I can’t remember the plot or names of the characters.
I remember that the protagonist is a lone parent to a boy aged around eleven/twelve. He goes to a sleepover and his friends make him sleep outside as a dare and he’s terrified but doesn’t want to lose face. His mum reassured him she is waiting just round the corner in the car (by text.) I have a feeling he might have slept on the trampoline.
Ring any bells?