Depends on the weather.<br /><br />Below freezing, I use my down sleeping bag as a sleeping bag, it's rated to keep me alive at -50F and comfy warm at 1F, unless it's down around 0F, It usually is partially unzipped. So far the lowest temperature it's seen with me is 0F, and I had it zipped up and was very toasty, almost too hot! <img src="/images/boards/smilies/smile.gif" border="0" align="absmiddle"><br /><br />Around Freezing I use my down sleeping bag as a blanket.<br /><br />in the 40's and maybe low 50's, I use my 10yr old sleeping bag as a blanket. maybe with my wool/alpaca blend blanket on top.<br /><br />In the 50's and 60's, I use a blanket.<br /><br />Above that, I may use a blanket, or just a sheet, depending.<br /><br />So it totally depends on the weather, which I always check before bed. <img src="/images/boards/smilies/smile.gif" border="0" align="absmiddle"><br /><br />With Love,<br />Tara