Features. Designed to fit in the back seat of most full-size trucks, cars and SUVs. Air chamber on the bottom fits into the footwell gap. Portable DC pump for easy inflation. Air pillow and storage bag are included. 1-year limited manufacturer's warranty. Dimensions: 60" x 35.5" x 17.5". Model: PPI-TRKMAT . Made in China. Who needs a hotel when you have the Pittman Outdoors full-size inflatable rear seat air mattress? Designed to fit in the back seat of most full-size trucks and SUVs, it features a durable yet soft nylon construction and comes with a DC pump for simple inflation. An air chamber on the bottom sits right in the footwell gap to keep the mattress stable.