This queen sized Aerobed with a headboard. By far the most comfortable air mattress I've ever used. I thought the headboard was overkill but I've found it helps keep your pillow from slipping around when you sleep and of the tent floor in general. It has a built in inflator so with a power inverter your good to go.

Here's a not so great photo I took of it in the tent awhile ago

Edit: they sell these at Costco too. I've used it a bunch for guests at home as well