Teddy was like that for a few days, I was considering buying a massive runner to go in the hall!
What I did to coax him off was to put his bed just off the carpet so that he could step from the carpet onto his bed, then I put his tunnel on the end of his bed so he could get a bit further out without stepping on the slippy floor. Once he had conquered that a couple of times he hopping right around it onto the floor, I think the doorway was also holding him back, maybe he was a bit unsure as to what was on the other side, this silly little method worked for me and Teddy though, and now he's everywhere lol