Just returned from a camping trip with the Exped Megamat. To be honest, I'm getting tired of dealing with a large tent, a large cot, and a large mattress. I love how easy it is to get up off the Camptime Roll-a-Cot and step out of the tent, plus the mega comfort of the Megamat, but I don't love the labor it takes to deal with these large items nor the space they take up in my vehicle. I debate this every trip but after this last trip I vowed to take a smaller gear set next time. To wit:
BIG STUFF
Kelty Trail Ridge 4 tent
Camptime-Roll-a-Cot
Exped Megamat
SMALL STUFF
Kelty Trail Ridge 3 tent
Helinox Cot One
Exped Synmat 7
The smaller gear set is very comfortable if you can tolerate crawling out of the tent.
Don't know if I mentioned that the Exped UL pumpbag does a good job of inflating the Megamat. I tried to use the large Schnozzel that comes with the Synmat 12 but found it just too humongous and unwieldy. It take about four fills with the UL pumpbag to fill the Megamat---actually easier than a foot pump, I found.