Scanning old articles and came across this – I’ve made a comfy bed using rope only, but this was in the valleys and assuming you can find two long poles, I strung the rope back and forth between the poles to create a stretcher rope bed.  Poles propped on a fallen tree one end and hill the other.  6’x6’  nylon fly as a shelter using sticks as tarp poles, sticks as stakes, kept my “patient” dry and reasonably comfy he reckoned inside a mylar sheet on a full stretcher bed during an unecpected  overnight stayover 20years ago in remote bush in really bad weather, after that person had an accident and we had to wait for help (the other 2 had gone out that night to raise help).
but not something you’d find in the mountains when climbing admittedly.