James, last weekend I measured my small, NeoAir to set a base figure. I thought I could live with the BA being a little smaller, this may not be acceptable. I'll have to do a retake this weekend. Thank you for the heads up. With my spending my income tax refund on all cuben gear already, bike maintenance, glasses, motorcycle camping gear, I can wait now to get a newer and lighter mattress for snow camping. Snow camping will be over in a few more months, I can use what I have already. Besides, maybe some reviews will come in or a upgraded mattress will become available.