Nemo - Cosmo 3D Insulated - Sleeping mat tested

very comfortable and stable mat, used down to -9c so far with a sea to summit ember 3 quilt. did not feel cold.
pumping up is a bit awkward inside a tent but not a deal breaker once you get used to it. rolling it up is a bit of a faff also as you need to really squeeze down the foam section inside the pump area.
all in though this is a really robust mat, should last a lifetime, does not sound or feel like a crisp packet as some others do. has a good dip in the centre to stop you rolling off in the night.