A wide range of new and used air mattresses and sleeping pads are
available at eBay auctions. When selecting an air mattress on eBay,
check whether it is inflated manually or with an electric air pump.
Consider the construction and durability of the air mattress, as well as
how easily it can be cleaned and stored. The eBay listing should
note whether the air mattress is new in the box, and whether it comes with
a repair kit that enables you to patch punctures and seam leaks.
Finally, look for dimensions in the eBay listing that will tell you
whether the mattress is a twin, double, queen, or king.