Hi all, I have finally decided to purchase a cumulus 450 quilt. However, I am really torn about which is the proper size for me. I am a short guy (166 cm or 5 feet 5 and a half). I am also a stomach sleeper which raises my height to 176-177 (about 4 inches more). So is the short going to cut it or do I need to size up? From my understanding the short one is for people up to 170 cm. But is this calculated only for people laying on their back? Since this is going to be the most expensive piece of gear I own I really would like to make the right choice.