Robert Wood, a 55 year-old chef, gets up four or five times a week while asleep and heads to the kitchen where he prepares omelettes, stir fries and chips. He has been sleepwalking for 40 years but, together with wife Eleanor, is becoming increasingly worried about having an accident while in the kitchen.

The couple from Glenrothes in Fife now cannot sleep for more than around three hours at a time. Mr Wood believes an ulcer in his intestine may be at the root of the problem. Because the condition only allows him to eat very small portions, he thinks his hunger pangs might cause him to head to the kitchen. Once he tried to fill a small bowl with a whole box of cereal and carton of milk. Mr Wood is said to be seeking help from sleep specialists in Edinburgh