I'm thinking of upgrading from my current ENO double nest to a WB Blackbird. I was going to get the double because I'm 275 and I have a sleeping pad and don't want to spend the $$$$ on an underquilt just yet. My question is will the pad be well centered under you even though you are laying at an angle? Also my pad is a themarest 72x25 4 season pro. Will that fit in the pad pocket? Also can it be left un inflated? One more question. Will the non inflatable accordion style sleeping pads work with this kind of pad pocket? I was thinking I could save some weight by carrying one of these super light indestructible type pads.