Mountain Hardwear Phantom Sleeping Bag: 15 Degree Down

I used this bag quite extensively in the Colorado Rockies and in China. First, this bag packs to a phenomenal size and great weight. This bag will definitely keep you warm when you need it, just stay cozy. It saves a great deal of space when packing your gear. Some dislikes are that the down comes out occasionally. The shell is thin, so don't get it wet. Due to its lightweight, it doesn't insulate against the cold ground too well. Make sure you use some kind of sleeping pad to insulate well. SIze, I'm 5'11 and got a regular size. No problem there.

Had ltwt (exped down wallcreeper) bag that was always cold. I DO sleep cold. I wanted a 2# bag that was truly warm to 30 min and hopefully 20 degrees. THis will be my primary bag 3+ season. I slept in it for about 7-8 nights. It was not cold so I can not accurately assess temp BUT it was super cozy to 40-45 degrees. I used it as a quilt until near dawn when I zipped up. It is light, disads are tight quarters in mid leg area so cannot take off pants in bag. Otherwise no comfort probs for a skinny 6'3''. Also half zip does not allow as much ventilation. I am very happy with this bag otherwise.

hi, i used this sleeping bag at Ixtaccihuatl volcano in Mexico, its really compact and light, you feel warm and comfortable, and i don't need to use extra clothes, so my backpack was lighter than ever, it's a very very good gear, thanks.

I've taken my Phantom 15 on two week long backpacking trips through the Yosemite backcountry and could not have been more satisfied. Not only it this bag lightweight and very compact, it is super warm. One morning while camping in Lyle Valley, I peeked outside my tent to find my boots frosted over, but I kept warm and toasty! The 3/4 zipper gets some getting used to, but it is worth the weight savings. I have had no problems with moisture. The shell of the bag does quite a good job repelling water. Put this bag at the top of your shopping list!

I've got the 5ºF degree version and I've slept very comfortably down to 15ºF in the open without a bivy sac. Its probably heavier than other bags due to the zip-in capabilities, but its good bag regardless.

Usage: WA Cascades. So far three overnights with temps about 25-35. Opinion: Warm and toasty. Draft tube along the zipper is great; draft collar works well too. Fabric seems to be a bit tougher than other ultra-lightweight bags. Bit wider than I would like (165lb, 6'2" male). Compresses to about 6x6" with a compression sack.

Overall this bag is awesome. I was comfortably warm down to 18 degrees (with sleeping pad). There is plenty of room in the leg and foot area. It compresses down to nearly nothing, the draft collar is awesome. The inside pocket is nice too. My only complaint is the room in the shoulder/chest area. It was slightly restrictive, but to be somewhat expected from a cold weather mummy bag. Again, not a big deal just something to keep in mind.

Just came back from a trip to the Big Sur area of California. During Thanksgiving night the temperature dropped to the mid 30s, and I was nice and warm. The next day it rained the until noon, and while tent bound the sky blue color of this bag really cheered things up. The zipper did snag a bit, but overall it was a great bag. The 3/4 zipper was easy getting used to since it allowed for much quicker exit than half-length zippers. My only complaints are that the actual weight was 3oz heavier than stated and bag does not seem as warm as my Marmot Pinnacle, though it is 9oz heavier. Also, loft was NOT 6 inches as stated by MH, but great bag nonetheless.

The Phantom is way compactable and warm. I spent a couple weeks in Alaska with it and it was plenty of insulation, but I also love it in warmer weather in Utah. Great versatility. The only problem I have with it is the 3/4 zip. It makes the bag a little annoying to get in and out. Other than that, it's a great bag.

I just used this bag for 6 weeks straight while backpacking through the high sierra this summer (2004), above 10,000 feet most of the time experiencing nighttime temperatures between about 25 and 55 degrees F or so (guesstimate). I absolutely loved it. I am a 5'-4" 125 lb female and tend to get a bit cold easily. I never even had to cinch down the hood or draft collar. A bonus worth mentioning is that they make a small size, which fits me perfectly in length and has enough space around the torso that you don't feel clausterphobic (they also make a regular and long, I believe). It packs really really small and is unbelievably light. It is less than half the weight of my previous down bag that I used for 14 years. A possible down side is that part of the reason it is so light is the fabric. We were in a 3-season tent every night, so the sleeping bag was not subjected to much abrasion. It seems very thin, not like something you'd want to be dragging around in rocks and twigs, but then again I didn't test it. It could very well be quite strong fabric but is SEEMS thin. Also, I did notice that feathers seem to pop thru more frequently than they did with my old bag. On the positive side, the internal draft collar is cozy, and the draft tube along the zipper has a nice thick fabric strip along it so the zipper doesn't catch on it. Highly recommended if you are looking for an ultralight warm bag.