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Mountain Hardwear
Rook Sleeping Bag: 15F Down

4 out of 5 stars
1 Review

Out of Stock

Don't worry though, we have a lot more 5 to 29 Degree Down Sleeping Bags in stock than that.

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Rook Sleeping Bag: 15 Degree Down

The Mountain Hardwear Rook 15 Degree Down Sleeping Bag offers a happy medium that's perfect for shoulder season backpacking trips. Filled with a lofty dose of down insulation, you'll barely notice its weight in your pack, and it offers heat-trapping warmth that stuffs down nicely on longer trips. Treated with a durable water repellent, the down is protected from light precipitation while you're setting up camp, or chance spills from your reservoir. A traditional mummy shape delivers efficient heat retention on chilly fall nights, while the two-way zip lets you welcome in some cool air when the morning sun hits your tent.


  • A lightweight sleeping bag for shoulder season camping
  • Lofty down fill delivers toasty warmth at a backpacking weight
  • Water repellent finish helps defend against loft-killing damp
  • Cushy draft collar helps keep your body heat inside the bag
  • Down filled face gasket is comfortable to snuggle in at night
  • Two-way zipper can be opened at feet for quick ventilation
  • Item #MHW01D1
[face fabric] 30D nylon, DWR finish, [lining] 30D nylon
650-fill down
full-length, left or right
Max User Height
[regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[regular] 60in, [long] 62in
Hip Circumference
[regular] 55in, [long] 58in
Bag Length
[regular] 86in, [long] 92in
two-way zipper
Fill Weight
[regular] 1lb 5oz, [long] 1lb 7oz
European Norm Comfort Rating
European Norm Lower Limit Rating
Storage Sack
Stuff Sack
Stuff Size
8 x 15.5in
Claimed Weight
[regular] 2lb 8oz, [long] 2lb 10oz
Recommended Use
backpacking, weekend camping
Manufacturer Warranty

Overall Rating

4 based on 1 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 0 reviews

Fits True To Size

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4 out of 5 stars

June 3, 2021

Nice feature set, good build, runs cold

I've used it several times

Picked this up to replace a fantastic marmot bag I had that went missing after a move. The bag it was replacing was 0F down, and had felt like overkill whenever I used it - I run warm, always bring extra insulation that I can put on in the bag, and usually sleep on a thermarest for the insulation. Anyway I picked this up before an early spring backpacking trip to Alaska. Overall, it packs down nice and tight in the included compression sack - about the size of a stuffed midweight down jacket. The zippers are robust with nice heavy garages and there?s a thick draft barrier along the zipper. All good. However, for the first time in a while, I woke up a little chilly overnight. It could?ve been a variety of factors, but I sure think the comfort rating of 26F felt a little optimistic still. I?ll keep it though, because I?m rarely in places that cold, and the DWR, light weight, and good features probably make up for it. I guess the moral is if you?re on the fence between this and a 0F bag (and run a bit colder), step down to the 0. Oh yeah, last thing, I?m no string bean and did not suffer any of the ?claustrophobia? with this bag that some stockier people report with mummy bags. YMMV, I?m not prone to that, but this felt like it had the right amount of room. If you?re a bigger fellow, it could be tight though.

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Originally reviewed on Backcountry.com