We used this set with the Exped Sim Comfort Duo 7.5 Sleeping Pad and it fit very well. The bottom poly sheet is a very slick fabric and the elastic mesh sides could be tighter, so it does tend to slide off the corners of the mat and move around a bit by morning. Nothing we couldn't live with though. So far, we've used it in temps down to about 33 degrees with our tent's fly on and it was toasty warm! The set is very roomy, so side sleeping, cuddling, etc. was easy to do. Lots of room to move around. It came with a mesh storage sack (doubles as a personal bug net for your head) and it's own dry bag. Actually squishes down relatively small. Overall, I'm happy with the purchase!
This review was written in the old system and had content requirements that are different than reviews written today.