NEMO - Kayu 15 Down Mummy Sleeping Bag -9ºC Women's

Just got back from Algonquin where the temps dropped to 3 degrees C. I was comfy in my fairly new -9 degree C Nemo down bag wearing long base layers only, but I felt if it got below freezing I would need some additional layers. Other commenters are giving good advice when they say a good sleeping pad makes a big difference, especially if the ground is already cold (not just air temps dropping at night). Don't trust temp ratings of cheap bags and aim for something with a rating 15 degrees below the coldest you could expect it to possibly get.

Honestly I bought a Nemo Ramsey 15 a number of years ago and it was terrible, enough for me to avoid Nemo sleeping bags. Maybe it was just that model or something but I forever woke up looking like a chicken covered in tiny feathers and right from the get go it was clearly understuffed. It was much colder than a number of my friends 9-15 rated sleeping bags. I've since got a different bag that is rated to the same temperature after learning more about fill weight/power and it's clear that Nemo bag was a piece of junk. The kicker is Nemo seems like a great company and even sent me another one assuming the one I got was a lemon, and it was the exact same thing. I don't think I'd go back to Nemo for a sleeping bag

It’s all about a good sleep system. I have a 15 degree Nemo bag and an XTherm pad. Throw in a hot water bottle and I’m toasty all night. Just sleep in a base layer.

I can vouch for Nemo Equipment bags (I have 3 down ones and one synthetic for different temperature ranges). I can also vouch for Marmot down coats (for in-town use not for winter backpacking or camping) but I have never used a Marmot sleeping bag. My 3-season backpacking bag is a Nemo down 15F version that is probably 10 years old now and it is great except for in extreme heat and extreme cold at night. I have an old Eddie Bauer Flying Squirrel Sleeping Bag (modified with velcro) that I use for extreme heat and other Nemo down sleeping bags for winter backpacking. Nemo has a lifetime warranty on their equipment.

I love my down 15* Nemo bag. It's a huge warmth difference compared to my synthetic 25* Nemo.

Nemo down sleeping bag. My most expensive and by far my favorite sleeping bag.

Nemo down 15F is my favorite. I felt warm sleeping when outside was below 30F. Wait for the next sale in REI you can snag it for nice discount.

I like the Nemo sleeping bags that have the gills. You can open them when it's warmer and zip them up as the temperature drops. Works much better for me than just opening the side zipper, which I find let's too much heat out.

I vote for Nemo bags. I have 2 and love them. Perfect for side sleeping.

This. I hate mummy bags. I move too much in my sleep. My Nemo takes up a bit more space in my pack but it is so comfortable and a good night’s sleep, where I can fully roll around in my bag, is worth it. I will never go back to a mummy bag.

Nemo for sure

Spoon shape is great, arm zippers in the boost just seem drafty.