G'day David,

Yes, there are a range of fittings that come with the Monstapump, and there is one that will work with the Quest Sofa.

G'day Tom,

The valve size of the Monstamat and Kozi is a fairly universal size for self inflating mats, so whilst the thread may not be compatible to screw the fitting in, it will line up to the hole perfectly.

G'day Rhys,

Yes you can inflate/deflate an Exped MegaMat Duo with this pump, the fittings may not be an exact fit but this will still be able to hold over the valve and either inflate or deflate the mattress.

G'day Michael,

Yes you can use this Monstapump to deflate a self-inflating mattress without damaging it. Just be careful to not overdo it, the pump will probably change tone once it's at its limit and the mattress won't shrink much more. Deflating a mattress to roll up in your swag when you're on the go wouldn't be an issue, and you would be correct in storing it out of the swag for the long term.

If you are using the Monstapump to deflate and leaving the mattress stored for a while the foam cells will be more compressed, it's good to either leave a little more air in there or inflate it every couple of months to keep the foam in good shape.