by north-north-west » Wed 19 Jul, 2017 6:06 pm
There's no one bag that will cover every season and every location. What you need to look at is the entire sleeping system - bag, mat, clothing. A less warm bag (or quilt) can be used in colder conditions with the right extras (thermals, down jacket, down booties or very warm woollen socks, etc). Plus, as has been said, it does depend to some extent on your metabolism. Some of us sleep cold. *shiver*
Both One Planet and S2S make good bags, but a -10 bag would be too much for a lot of people outside of winter except during cold snaps.
"Mit der Dummheit kämpfen Götter selbst vergebens."