Something else to remember...

 

Sleeping bags come in a variety of shapes, thickness and sizes from "as snug as a bug in a rug" to something much more roomier and for me I tend to favour snug,

Ease of rolling up, ready to take further along is another relevant thing to be thought of in selecting one, many today easily compress with straps and draw strings to make life easier.

Over the years various national scouting associations have endorsed certain brands and this advertisment is a good example of just that.