Aerobed comfortable self-inflating double mattress (Wormholt W3)

This is a very comfortable self inflating double mattress. Hardly been used. It connects to the mains and inflates itself. It comes from the US so requires a voltage converter rated to 300W, which can be bought cheaply off Amazon. It weights about 5kg and can fit in a medium wheelie case. I have another of these mattresses, and it works very well. I don’t need two, so giving away