G'day M,

That's hard to say as it entirely depends on your own personal comfort.
If you're a cold sleeper it would be a good idea to upgrade the mattress.  The one that comes with the bed is just a thin foam similar to the mats that come with a swag, and you can increase warmth but putting something like a yoga mat underneath it.
You could always give it i go and see how you go, and ivest in an upgraded mat down the track if you decided you need extra insulation. 

G'day Sarah,

The Oztrail Furniature Bag in the Large size would fit! 
Check it out here.

G'day Scott,

Sorry for the delay in getting this info to you, the measurements are as follows:
Upper - 85.5cm
Lower - 101cm
Height -  31cm

Hope that helps.

G'day Natasha,

There isnt necessarily a recommended option for these, as pretty much any self-inflating mattress will be compatible - the limitations would just be your budget, mattress thickness, and personal preference.
The bed itself is 203L x 76W & I'd probably lean towards looking at mats that fit close to those dimensions to prevent the springs from being exposed - this is mostly the King Single size category.
If you need any help narrowing it down further from there, give us a buzz on 1300 914 007 & we'll be more than happy to help!

G'day Bree,

We're pretty confident you could put two of the Big Sky Stretcher Bed Deluxes in the RV5 with a little bit of room to spare, but adding an inflatable on top as well probably won't work, unfortunately. Check out Ben's features video on the RV5, he tries out a stretcher in there at around the 5 minutes mark. 

G'day Jimmy,

I've just double checked and unfortunately, Coleman doesn't do replacement canvas pieces for the Big Sky Stretcher Bed Deluxe.

G'day Paula,

I've just double checked and the cover on the Big Sky Stretcher Bed is stitched shut, so, unfortunately, you won't be able to remove it. We'd suggest popping a sheet over the top of the mattress.

G'day Jen,

You could theoretically join two of the Big Sky Stretchers together and pop a self-inflating mattress on the top. You will still end up with a bar down the centre, but it will likely be less noticeable due to the spring design.

G'day Jill,

The mattress on the Coleman Big Sky Stretcher Bed Deluxe just sits on top of the stretcher, so you can remove it if you wanted to.