千萬別買...OG板有不好的評價...
下面是google看到的評價
http://www.trailspace.com/gear/review/00002755

Comments: This has to be the lightest, smallest sleeping bag that you can buy and use for serious hiking/camping/mountaineering. It stuffs down to the size of a football, weighs less than 2 lbs. and dries in a flash. Obviously, there is a compromise: this bag simply will not keep you warm enough to sleep below about 32 f., and anywhere around freezing you really should use it with some form of bivy sack or other supplemental bag. However, it does open the door for some really minimalist hiking possibilities (e.g., multi-day trips with a "day pack"). Well designed and constructed, although its lightweight materials might lessen durability.

預算不高的話，國產的睡袋其實很夠用了~
可以考慮雪雁的雨絨睡袋2千出頭就有了，除非預算10k上下，不然可以不用考慮進口睡袋...較好的進口睡袋推薦你
Mountain hardwear PHANTOM 800-fill Down
MHW還有一顆Spectre SL睡袋，獲得今年的Backpacker Editor's choice，tre SL睡袋，得了今年的Editors' Choice，因為表布用了他們家的Conduit SL，並用welded技術將羽絨隔間，沒有了車縫線，所以成了一顆防水的羽絨睡袋，要13k左右，如果你想要一顆露宿睡袋，可以考慮一下，到-7度。
這些是以台灣買的到的為主，另國外有WesternMountaineering的超棒睡袋，可惜台灣買不到...@@