Amara View - too narrow at the mouth, prone to leaking around nose and corners of the mouth...cannot tolerate more than 13 cm without "liftoff" (tolerates side sleeping and rolling the best)
F30 - largest size presses against nose, wake up in moninge with a very painful nose, not are side/roll friendly at all.
Dream Wear - Doesn't seal around my nose regardless of mask size.
So... for now I'm on the Amara View...will get 5-7 hours...if the machine goes nutsy and shoves 14 cm at me for a leak, then I just pull the mask and go without for the night....because there's no way to maintain a seal so that the machine will back down.
"I drank WHAT?" - Socrates