I have the Thermarest Mondoking in large https://www.mec.ca/en/product/5045-939/MondoKing-3D-Sleeping-Pad
It was 230 new and it is only a few months old. Used for about a couple weeks. Very good to excellent condition.
This is a very comfortable sleeping pad with a mix of foam and air. It can be used for camping, car camping, in a trailer, as a kids bed or a guest bed. It's more comfortable than a blow-up mattress.
It's good for the chemically sensitive too I found, as I am very sensitive to offgassing.
Please email.