The charity jail cell sleepover event saw 13 people locked up in a cell for 12 hours, including two teenager girls and a woman in her 70s.A Just Giving page has now tipped more than £51,000 in donations. PC Andy Morris, who co-ordinated the lock up, said: Thirteen went in and I am pleased to say 13 came out. A group of bleary eyed convicts have survived the night! We are hopeful that the criminal gang will raise close to £10,000 for their efforts. Awesome.The event raised money for Amelia Martin, currently in Prague for six weeks receiving pioneering proton beam therapy, a type of targeted radiotherapy, not available in the UK. Following four years of treatment at Addenbrookes, including two surgeries, she was given the devastating news at the end of last year that there was nothing more that can be done on the NHS . It is hoped the proton beam therapy will give her more precious time to spend with her six year old son Dylan and husband Alex. PC Morris, who runs Fenland police cadets, said the cells havent been used at March for four years so it was a perfect use of the accommodation.To donate visit the Amelia Martin Just Giving page here.