Marmot Ouray

The Ouray is rated for 0 degrees Fahrenheit, making it a solid choice for winter camping and cold-weather backpacking where temperatures hover near or below freezing.

Fill power measures the loft and quality of the down. 650-fill-power is a reliable, mid-range insulation that provides a good balance of warmth-to-weight, ensuring you stay insulated without the bag feeling excessively heavy.

The extended flaps are designed to give you more room to move. You can unzip them to open the bag up like a blanket, which is helpful if the temperature rises unexpectedly or if you prefer a less restrictive sleeping environment.

While it is built for frigid conditions, the use of down insulation keeps it more compressible than synthetic alternatives. It is designed for winter backpacking, but keep in mind that a 0-degree bag will always take up more space in your pack than a 3-season bag.

Temperature ratings are generally based on the 'limit' rating, meaning it will keep you alive and relatively comfortable, but not necessarily cozy. If you are a cold sleeper, you may want to pair this with a high-R-value sleeping pad to ensure you stay warm throughout the night.