The `Fight for This Love` singer - who is battling potentially fatal tropical disease malaria - has asked her mother Joan Callaghan to prepare her favourite childhood meals because the meals served in her private London hospital were too "fancy". A source told Britain`s The Sun newspaper: "It`s definitely helping to cheer her up. "There were things like quails eggs on the menu. But fancy foods aren`t Cheryl`s way. "She`s from a real working-class background and the home-made meals are a nice reminder from her childhood days." The 27-year-old beauty has also been allowed to bend rules by keeping her leftover food - which has included pease pudding, Craster kippers from Northumberland smokehouses with scrambled eggs and Joan’s homemade ham and lentil soup - the staff fridge for when she gets hungry. Cheryl has banned all visitors except Joan and dancer Derek Hough- who she is rumoured to be dating - from visiting her in hospital. A source said: "Cheryl doesn`t want people to see her as she is." Cheryl is thought to have contracted malaria while holidaying with US dancer Derek, 25, in Tanzania, last month.