Hi Jake,
It’s still working fine – plenty of nights using it in all conditions and a couple of different tents. The non-slip matting that I used is so thin and flexible that it makes no difference at all to rolling it up. I’ve kind of forgotten it there and I definitely don’t slide around as much as I used to.

Al.

I’m having same problem with the mattress. A little incline, and I’m slipping towards the end of the 1p tent (that leads to moisture getting in, as I’m hitting the flysheet through the mesh).

Question: a year on from your hack, how does the whole thing hold?
Any issues in rolling up the mattress?

Cheers,
Jake