I was house sitting once and the owner's lonely Rottwieller somehow wiggled inside my down mummy bag during the night. I think my toenails were longer than his <img src="/images/graemlins/blush.gif" alt="" />. Mateable bags are a very usefull survival option. 'Snuggling' with a hypothermic victim to provide vital body heat is very effective. Many bags are produced with this feature. My Wiggy 2 bag system is one. I would say it comes down to how fond you are of your partner- snoring,tossing and turning, halitosis at 4 A.M.? Or is he a rottweiller who loves peppermint candies and a sound sleeper <img src="/images/graemlins/grin.gif" alt="" />? Do you have any nocturnal habits? Crackers and strawberry jam like my last one <img src="/images/graemlins/shocked.gif" alt="" /> Fess up <img src="/images/graemlins/tongue.gif" alt="" />