Mountain Hardwear - Wraith -20

The new stuff is way too expensive for me. I have five of their older models and they are still chugging along just fine. A Speed 32, a Phantom 32, a Phantom 45, a Lamina Z Flame 22 and a Wraith -20. I think one of their new top of the line 0 degree bags costs more than what I spent on all of the ones I own.

My current down mummy one from Mountain Hardwear that I got for a crazy deal (<$90). There are zippers on both sides and the toe area. I move a lot in my sleep, and the slightly wider area up top makes it easier. (It's wide enough for my arms to go to my shoulder area, even zipped up.) It's a huge step up from my previous one, a cheap synthetic mummy.

It's really a personal choice. I would suggest you try the MH sleeping bag. It's a free way to test a type of sleeping bag. Worst case, you buy another one later. I personally use down sleeping bags because they are lighter and compress better. But they are more expensive and take a lot longer to dry if it gets wet.