I am going to ask some question just to help others to come up with the answer.
What size are you and your wife ?
What is the total weight of your Supermid set up ? (pegs /grounsheet/bug net ...whatever you are using)
What is the size of that rolled up ?
Apart from weight and size what don't you like and what do you like about that set up ?
Is mud a problem where you camp ?
Wind driven rain ?
and ... what mats do you use ?