Hello from a newby,
I love my Hennessey A-sym . Anyway just floundering a little. Current pad is a 28" Target ccf which is nice and wide. Loose mummy Kelty synthetic bag.
After a good deal of forum searching, I am trying to formulate a plan for wintertime use (approx +30 degrees F.) I checked out a Big Agnes system at REI on the basis of forum recommendations. I liked the concept of the slip in inflatable, down or synthetic pad as an insulating layer, but I wondered what happens if you don't sleep on your back all night? At least on the ground you can roll over in your mummy bag and the Thermarest pad stays underneath you (more or less). When you roll in a BA rig in your hammock wouldn't the pad turn with you?