Don’t get a cheap one! I bought a $400 water trampoline from Sports Authority to use at the beach while I was vacationing at a beach house. The box was pretty heavy, but that was expected as it was a large trampoline. We got the trampoline home and decided to inflate it to check it out. It was 10 ft in diameter. I couldn’t wait to get it on the water. I had to deflate the trampoline and put it away until the exciting day of departure came. After I deflating I tried to put it back in the box, but that wasn’t happening. It is the same story with inflatable mattresses once you take them out of the box they don’t go back in. That is a fact of life, but