Kaley Cuoco and fiancé Tom Pelphrey's unorthodox sleeping arrangement has done wonders for their relationship. "He started sleeping in the guest room," Cuoco, 40, said of Pelphrey, 43, during the Monday, February 9, episode of Dax Shepard's "Armchair Expert" podcast, revealing that her fiancé had been struggling to sleep with their dogs in their bedroom. Cuoco added that sleeping separately turned out to be a "game-changer." "Tom is a night owl. Goes to bed very late," the Big Bang Theory actress explained.