Vehicle seat including inflatable device inflatable downwardly

A vehicle comprising:

• a vehicle floor;
• a vehicle seat mounted to the vehicle floor, the vehicle seat having a cross-seat axis;
• the vehicle seat including a seatback;
• the vehicle seat including a seat bottom rotatably connected to the seatback about a rotational axis, the rotational axis extending along the cross-seat axis;
• the seat bottom including a proximal end at the seatback and a distal end distal to the seatback;
• and
• an inflatable device fixed to the distal end of the seat bottom, the inflatable device having a wall that is a thermoplastic elastomer, the wall defining an inflation chamber;
• the seat bottom being rotatable relative to the seatback about the rotational axis between a deployed position and a raised position;
• the inflatable device being moveable with the seat bottom between the deployed position and the raised position;
• and
• with the seat bottom in the deployed position, the inflatable device being spaced from the floor in an uninflated position and being inflatable to the floor to an inflated position.