first and foremost, I wanted to thank the community for the help they've provided so far in their answers.
Anyway, One more question, this time about a liner. I have this Sea to Summit liner:
Though I am yet to try it in the field. The company claims that it increases sleeping bag performance by up to 20°F (11°C). Was curious about two issues:
1. How much really do liners of such sort increase the performance of sleeping bags? What exactly does it mean that the performance is increased by up to 20°F (11°C)? Even the conversion from Fahrenheit to Celsius doesn't add up.
2. Can I count on a liner to provide extra warmth when coming to choose a sleeping bag? That is, suppose I need a sleeping bag for a comfort zone of 0 degrees Celsius (about 30 degrees Fahrenheit) and I find a good sleeping bag with a comfort zone of 5 degrees Celsius (about 40 degrees Fahrenheit) - can I buy this sleeping bag and use with the thought of the liner providing extra warmth?
thank you for your help