How to Choose a Sleeping Bag or Liner for the Camino de Santiago

There is much debate whether you need a sleeping bag or a liner during the summer on the Camino de Santiago.  Here I want to look at both side of that argument and help you how to choose a sleeping bag or liner; then which one and do you need it treated against bed bugs. There are three other posts in this series: Choosing a Rucksack Choosing Rain wear What Footwear, boots or shoes? (My Packing List) My Experience I have always used a sleeping bag on each of my Caminos to Santiago and I have only walked in the hot weather [...]