Woot offers Intex Dura-Beam Standard Pillow Top Airbed Comfortable Blow Up Portable Air Mattress with Built-in Electric Pump and Carrying Bag, Twin Size, Blue for $18.99 (orig. $68.99). Free shipping for Prime Members. 

Product Description:
The Dura-Beam Standard Pillow Rest Air Mattress is a comfortable and durable sleeping solution for people on the go. The mattress is designed with a velvety sleeping surface and features Fiber-Tech interior construction, which ensures lasting comfort and durability. This air mattress is compact and lightweight, making it easy to transport and store. The mattress is raised 10 inches from the floor, providing added convenience and ease of use. It also has a built-in pillow that provides extra support and bed-like comfort. With an approximate inflated size of 39 inches by 75 inches by 10 inches, the Intex Dura-beam air mattress can accommodate most people comfortably. 

• FIBER-TECH BEAM CONSTRUCTION – Comprised of thousands of high-strength polyester fibers that provide enhanced comfort, stability and support; Fiber-Tech Beam Construction can withstand more weight and pressure without losing its comfort or stability
• DURABILITY – Unlike traditional air beds that tend to sink or dip over time, our 10" Dura-Beam Air Mattresses are designed with bottom ring stability to withstand the weight of the sleeper without sagging or losing its shape
• BUILT-IN AC ELECTRIC PUMP – High-Powered built-in electric pump (110-120V) for hassle-free inflation and deflation; users can easily and quickly set up the air mattress when they need it and then deflate it (Approximate inflation time 1.5 minutes)
• VELVETY SLEEPING SURFACE – The air mattress features a velvety sleeping surface that is not only soft and comfortable, but also easy to clean; this makes it an ideal choice for use as a guest bed or for camping trips
• STRETCH – At first inflation the material will STRETCH, which is sometimes misinterpreted as leaking; You will sense a loss of pressure, that's just the bed stretching, simply re-inflate the bed again; the bed will fully settle within 2-3 nights