rockermike Posted January 8, 2005 Share Posted January 8, 2005 (edited) I've got a chance to get a killer deal on a TNF -20 F sleeping bag (Solar Flare at 45% of retail), but is -20 sufficient for Denali? Or should I just bite the bullet (like an extra $450) to get a full on -40F? (Lets say early June trip) thx Edited January 8, 2005 by rockermike Quote Link to comment Share on other sites More sharing options...
W Posted January 8, 2005 Share Posted January 8, 2005 -20 bag in early June should be fine, and should prove to be far more versatile in the long run for other objectives. I've used a -10 on Denali in June, and it was more than adequate, not to mention lighter and cheaper. Quote Link to comment Share on other sites More sharing options...
miller Posted January 8, 2005 Share Posted January 8, 2005 im with W. ive used a -20 something bag on denali and found it almost too warm, except for at high camp where i certainly wasnt cold either. Quote Link to comment Share on other sites More sharing options...
Colin Posted January 8, 2005 Share Posted January 8, 2005 When I hiked the W Butt (in early-mid June) the only bag I used was rated to +10 degrees (Integral Designs North Twin). I don't neccesarily reccomend such a bag for the W Butt, but consider the added warmth from all your clothes. Quote Link to comment Share on other sites More sharing options...
Jason_Martin Posted January 9, 2005 Share Posted January 9, 2005 (edited) I actually used a rock wren inside a 10 degree bag. This works really well, because you really only need to add the second bag at 14 or above. The other cool thing is that you can use both bags in lots of other circumstances, not just on Denali or on big cold expeditions. Â Jason Edited January 9, 2005 by Jason_Martin Quote Link to comment Share on other sites More sharing options...
forrest_m Posted January 11, 2005 Share Posted January 11, 2005 another data point, i'd agree that the solar flare should be all you need. (i might have a different opinion if you were going in april or something). one note on using lightweight bags per colin's suggestion, keep in mind that with a lower-volume bag, it may be warmer NOT to wear a ton of clothes inside if your layers are so bulky that they start to compress the down from the inside. i've often found it warmer (when trying to extend the season of my summer bag) to drape a jacket over like a blanket than to wear it inside. Quote Link to comment Share on other sites More sharing options...
ryland_moore Posted January 19, 2005 Share Posted January 19, 2005 Also, if you do not wat to carry another sleeping bag in addition to the SF, use a vapor barrier liner in the sleeping bag or a fleece zip-in insert which will add about 10 degrees of warmth. You could also use a bivy sack over it which would accomplish the same thing. You should be fine in June though. Quote Link to comment Share on other sites More sharing options...
savaiusini Posted January 19, 2005 Share Posted January 19, 2005 At the last minute, before my trip to Denali in June 1999, I chose to take a synthetic bag. I used the TNF Darkstar (-40). It was only marginally heavier that the Solar Flare and Inferno (at the time). Bulk wasn't an issue either. I just figured it would be nice to not have to worry about getting it wet from frost in the tent/cooking in the tent/plus dromedary bag filled with hot water going in the bag . My two partners took synthetic as well and we were all happy with the choice. Also, you shouldn't rule out the potential for a couple rainy nights on the Kahiltna in June... Quote Link to comment Share on other sites More sharing options...
mtnbound Posted February 2, 2005 Share Posted February 2, 2005 hey, would your opinion change for a trip mid-may to mid-june? I would love to get by with the -20 I have. Quote Link to comment Share on other sites More sharing options...
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