I'll say being prepared will certainly help make sure you're comfortable. Although I was prepared for temps in the low 40's or high 30's, I was quite comfortable all night. The cold weather bag's contents did their job. I had a several layers, including longjohns, heavy pants & Shirt, and ski pants (bought last year from Big 5, on sale) and my old Air Canada Ramp Parka (gotta give the Canadians credit for knowing how to make warm clothes). I'm not really sure what my sleeping bag is rated to, but It's probably 0 as I was nice and toasty once I went to bed. Tony Muller's article (to which Tom posted a link) was published in the Jan. 2003 issue of SACnews, and it's advice is well worth heeding. Now if they can only make clothes that will cool you off????????????? Clear Skies Rick Tejera Editor SACnews Saguaro Astronomy Club Phoenix, Arizona SaguaroAstro@xxxxxxx www.saguaroastro.org In a message dated 6/23/2004 18:16:55 US Mountain Standard Time, acrayon@xxxxxxxxxxxxxx writes: Yes it did get a tad colder than expected. Prior to heading north the temperatures were predicted to be in the high 30's to low 40's F. At the site the cold temps didn't seem to take effect until near twilight. The worst time for me was Sunday morning, it got so cold for me that I got out of the sleeping bag to find and put on a heavy shirt, climb back in, catch my breath, warm up and go back to sleep. -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.