US Patent 10065534 Vehicle seats including bladders

A vehicle includes a seatback defining a loading surface and operable between deployed and undeployed positions. A seat base is positioned proximate the seatback. A bladder is operable between inflated and deflated states. A valve is fluidly coupled with the bladder. Foam is positioned within the bladder. The loading surface is substantially horizontal when the bladder is deflated and the seatback is in the deployed position.