I bought this sleeping bag, because I needed it for bike rides with tent overnight stays. I was also then a student, short of money and wanted to - and could - not spend as much. Eventually I came across this sleeping bag and he keeps perfectly what it promises: Frozen I have thus never - actually had me tended to be too warm so (though I was not camping in the winter, but only from spring to autumn, of course), it is small and light and therefore also suitable for bike hiking and trekking.