Ebay offers Open-Box Intex TPU Twin Camping Mat with Pump for $20.39 (reg $40) with free shipping.

Product Description:
Get a good night's rest on your next outdoor adventure with the TruAire Sleeping Pad. Inflate or deflate within minutes, using the included USB air pump. Bringing this pad along is easy, thanks to its carry bag, which is also included. But the true advantage of this TruAire mat is its inner waffle-beam structure: 50 interconnected air pockets working together to support your dreams.

• Dimensions (Overall): 75 Inches (L), 28 Inches (W), 2.5 Inches thick
• Weight: 3.07 Pounds
• Dimensions (Packed): 12 Inches (H) x 5.25 Inches (W) x 5.25 Inches (D)
• Recommended Capacity: 1 Person
• Shell Material: TPU (Thermoplastic Polyurethane)
• CPSC Choking Hazard Warnings: Choking_hazard_small_parts