Ebay offers Intex Standard Dura Beam Downy Queen Air Mattress for $34.99 (reg $59.99) with free shipping.

Product Description:
Get a comfortable night's rest wherever you are with this Intex 64763E Gray Standard Dura-Beam Downy Air Mattress with Built-In Pump in Queen Size.
Made for indoor and outdoor multi-use, you get a comfy place to rest whether you're crashing at your friend's basement or camping in the mountains. The queen-size design fits up to 2 adults and supports up to 600 pounds, so you can share space with your friends, family, or significant other. The airbed features a standard height and a flocked top with vinyl sides and bottom for water and weather-resistance. The 2-in-1 valve functions as a built-in foot pump for easy inflation and deflation.
Strong and lightweight, this Intex 64763E Gray Standard Dura-Beam Downy Air Mattress w/ Built-In Pump in Queen can accompany you on any kind of adventure.
Features:

• Indoor and outdoor multi-use airbed for a comfortable night's sleep wherever you are
• Queen-sized bed fits up to 2 adults
• Standard height with a flocked top with vinyl sides and bottom
• 2-in-1 built-in foot pump included for easy inflation and deflation
• Supports up to 600 pounds
• Color: Gray
• Dimensions (L x W x H): 60 x 80 x 10 inches
• Weight: 9.19 pounds