Related Clues:
- Unexpected hit
- Word with light or heavy
- Surprise success
- Versatile piece of furniture
- Couch in a guest room, perhaps
- Rip Van Winkle, notably
- Certain sofa
- 1973 Woody Allen film
- Convertible couch
- Rail supporter
- Car with beds
- Unexpected film success
- Unexpected success
- Overnight-train car
- Undercover agent?