Hi, GoLiveIt, I love your forum name!
As I've written elsewhere on here (though I think you haven't seen the posts, which is great because it won't be like I'm repeating myself for you
), I wouldn't be without my rectangular sleeping bag on the Camino. I had it the first time I walked in Sept.-Oct. 2010, then for some reason (I think it was to try and cut down on bulkiness), I bought a mummy bag for my second Camino in 2011. I got to Hungary for a three-week pre-Camino hike with a Camino friend from 2010, and quickly found out that a mummy-shaped bag is a disaster for me. I need to move around too much at night and my restless jumpy legs felt trapped! I abandoned the mummy bag at my friend's place in Hungary and (not able to find another rectangular bag there) bought a barrel bag. It was still tapered but not as bad as the mummy shape and I hoped it could work as a compromise. Nope. I hated it, it was so uncomfortable and restrictive! I spent most of the Camino with the bottom of it unzipped to give my legs and feet more room, petrified at the thought of bedbugs finding the easy way to get to me. I think my determination kept them away until Palas de Rei.
When I got back to Canada after my second Camino I gave my rectangular bag a hug and vowed never to do another Camino without it. And I bought a second sleeping bag identical to it so I'd have a spare!
I'm posting a link to my sleeping bag. It's been remodeled but it is still basically the same (new colour, mine is navy blue on the quilted side and tan on the sheet side). I wouldn't hesitate to buy it again. It's been beautiful on my two autumn and two summer Camino Francés journeys and I'll have it with me again in August.
http://www.mec.ca/product/5034-985/mec-intrepid-traveller-15-22c-sleeping-bag-unisex/
Best luck finding what you need, and Buen Camino!
Rachel
P.S. If you read the reviews for the sleeping bag you'll see that two of the four reviewers bought it for the Camino!