[header] How to host on couchsurfing [title] Have a spot in mind to put an extra guest or two. [step] It's called " couchsurfing " because you do not need a dedicated spare bedroom to host. A couch will do. 
So will a floor mat or air mattress and a spot in the living room. Some couchsurfers even choose to travel with camping gear, and may willingly pitch a tent in the back yard.