G'day Gerard,

Unfortunately, Darche have not has these mattresses tested for an R-Value, so we aren't able to provide any further info on this.
You could probably take a stab around 4-5, but that is a rough guess when compared to other mattresses with similar specifications.

G'day Simon,

It's hard to say for sure, it's one of those situations where you'll just have to try it.
I reckon it will be a tight fit and you'll have to really stuff it in, but it should work.  The mattress itself across the section might buckle and not sit great, but that might not be that much of a problem.
If you're only going for shorter trips of 2-3 nights it shouldn't be too bad, but I wouldn't want to keep it like that for longer.

G'day Simon,

I'm not familiar with the old version sorry, but the current model has mixed reviews.
I think in terms of self-inflating mattresses there are great alternative options out there, however, if you are specifically needing that 1100 size to fit in a swag, there's no other option within our range.  
The single/king single options max out at around 80cm wide, and the doubles are around 130cm wide.

G'day Kevin,

You can use either a couple or all 6 valves, depending on your inflate and firmness preference.
There are 4 valves on the 900 and 6 on the 1100 and 1400 sizes.

G'day Stephen,

The RS-1 Swag is a little too narrow for an ATM 1100 mattress.  We'd probably recommend going for a 90cm wide self-inflating mat or getting some custom foam cut somewhere like Clarke Rubber.

Thanks so much for your feedback, Cooper!  Loads of helpful info there.

G'day Brad,

The Darche All Terrain Mattress is great product, however it can be abit of trick to roll it up at the best of times.  Whilst it can be rolled up and stored in your swag without damaging the mattress, its best for it to be pulled out and rolled up/deflated as much as possible on its own before hand.  It would be pretty difficult to roll the both up from scratch at the same time.
Because the mat can be pretty chunky, its highly unlikely you wont fit the swag & mat combo back in your bag.

G'day Geoff,

You'll be able to use the Darche All Terrain Mattress ATM1100 in your rooftop tent in place of the supplied mattress and pack it up inside the tent. However, we'd generally recommend the Roof Top Tent Mattress RTM 1400 instead as this will fit your rooftop tent perfectly!

G'day Will,

It sounds like the Darche is going to be the best fit for your swag, and whilst they are a comfortable mat, they're not as 'soft' or comfortable as the Exped and Black Wolf offerings. But this is just my opinion of course!