G'day Matt,

Potentially but we haven't tried out this combo ourselves.  I believe the swag space itself is 77cm wide, but the supplied mattress is only 45cm wide.  Ultimately this is what allows the compact pack size, the swag folds narrower for rolling up - hence the 50cm wide packed size.
In theory, because the Comfort Plus XT Insulated Sleeping Mat is an air mat it should fully deflate flat and could be folded and rolled up in the Ranger to maintain the intended pack size.
Hope that helps!

G'day Chris,

This is a fully inflatable air mat, vs the comfort Plus SI which is a self-inflating foam mat.
Which one you choose out of the two ultimately comes down to packed size and weight.  Sea to Summits air cell mat range is targeted at lightweight adventurers who need to count the grams and have limited space.
They of course can also be used for car camping, but their advantage is their compact pack size.

G'day Laura,

The Comfort Plus XT Mats are a rectangular shape with a higher R-value and weight than the Ether Light XT Insulated Wmn's Sleeping Mat. Overall they're both comfortable mats, with good insulation value, and both should suit your needs.

You do need a pump, David, and the included stuff sack doubles as a pump to inflate this mat.

It has an attachment that goes on the valve, then you fill the may with air by gently blowing into it, seal the end and squeeze the air into the mat. Once you've done this 2-3 times, your mat will be inflated.

G'day Dan,

Great question - the new Ether Light Sleeping Mats are similar, but a little different to the other Sea to Summit airsprung mats. They actually have a different design with larger bumps and small internal baffles which leads to less fabric overall and therefore a lighter mat (these mats have a single layer). The Comfort Plus XT Insulated Mat has dual layer cells (a top air pocket and bottom air pocket) with much smaller bumps, so you end up with a slightly higher R-value, and a little more weight, but you have a backup layer if you accidentally puncture the mat. The new Ether Light mats are also arguably quieter than the other models due to the larger bumps and flatter overall surface. Both mats are a great option, but most of our staff here at very excited about the Ether Light and have recently bought them to see how they go!