I'm looking at sleeping bags. What temp range do I need for a late March start? I tend to sleep cold. I know it depends. I was looking at Zpack with a hood, and Western Mountaineer lately. Both are about the same price, WM weighs a hair more. The price for 10* vs, 20* isn't much either.
Also do I need a summer bag? I have a Kelty Cosmic 40* that I use in bed sometimes and I'm chilly at 60*, but with no hat. Will the cold weather bag be usable for summer if opened up? I plan on silk longies and socks as pajamas, yes and a beanie as necessary. Not much wt. difference between the summer and winter options.