A mum with a rare condition was taken to hospital after sleeping for four days without waking up.
Joanna Cox, 38, has a disorder which means she can sleep for up to 22 hours each day. The mum-of-two was diagnosed with idiopathic hypersomnia after years of excessive sleeping and struggling to stay awake during the day.
Before she was given a diagnosis, Joanna found herself falling asleep in unusual places such as a nightclub and even behind the wheel of a car.
