Mikey revealed this during filming for the new series of All Star Mr and Mrs. He'll be on the show this autumn with his fiancee Rachael Isherwood.
Mikey said: "I'm a terrible, terrible sleepwalker. At some point, someone is going to come home from a night out and see Gary Windass out with his Y-fronts on!"
Rachael added: "I sometimes catch him leaving the flat in his underpants!"
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