I bought the king daddy as well. I sold the 50mm mattress whilst it was still in the bag new. As I have slept on a 100mm self inflatting mattress and was still uncomfortable.
And it was so big and bulky!
I only ever use air beds. The queen size in your swag is a touch too big to get at the zippers, the normal double is the go. And for their price and compact, take a back up.
a doona underneath is recommended in cooler months, I use a king size doona and sleep in it folded over.
TIP. Canvas dose absorb water, and stitching can shrink etc, doing this trick can help keep your canvas more water resistant and supple etc. About $40, allow for 90 minutes.
Go to coles or woolworths and buy 8/10 tins of dubbin neutral leather polish. Cut the bristles back on a 50mm cheap paint brush to about 25mm. This makes it stiffer to spread it.
pitch your Swag without pegs. Start on the sunny side, Brush the cream on, you will see it melts into the canvas with a bit of sun, and makes it hard to see where you have applied it, so do so in a sequence pattern you can remember, start with the stitching first.
Do a flap zipped closed, then unzip and do the canvas exposed around the folds. Do the internal stitching and zip area as well.
Dont worry about a bit of excess getting on the vinyl well when doing the lower area, simply wipe off excess.
If you do this on a cloudy day, and penertration and drying becomes an issue... sneak into the house a knock the cooks hair dryer.
If you use a hot air gun !!! Keep well back from the swag. As this cream dose not need much temp. Once it has soaked in, it is very hard to see any difference.
But I believe this is better than any spray chemical, as they dont preserve the materials etc.
This application can be done to all similar canvas sheets.
oh yeah, add some tassels to the internal zips, makes it easier in the dark to find them to get out for a whizz!