I'm pretty sure it was down to the weather conditions Knotty, a constant fog or haze in the air which never really burnt off as the day warmed up. At night there was ice on the inside of the tarp and on the outer shell of the UQ.
As far as I know I'm not a sweaty sleeper so I'm putting it down to the weather me thinks.
I've ordered 3m of
this stuff today so I'll see if I can figure something out when it comes.
I thought I could lay out my Snugfit on the ground and then just make the Pertex cover a few inches bigger all round, make a channel at the ends and put a length of shock cord through it.