A seat assembly includes a track mount configured to shift along a track and a platform configured to selectively latch to, unlatch from, and pivot relative to the track mount. The assembly also includes a seat-back and a seat-cushion, each connected to the platform and configured to selectively latch to, unlatch from, and pivot relative to the platform. The assembly additionally includes a first mechanism configured to selectively operate the seat assembly in a first mode and a second mode. The first mode includes unlatching and pivoting the seat-back and unlatching and pivoting the platform such that the seat assembly tumbles relative to the track. The second mode includes unlatching and pivoting the seat-cushion and unlatching and pivoting the seat-back such that the seat-back comes to rest substantially parallel to the track mount. A vehicle having the seat assembly is also provided.