In several of my posts I have referred to and you will have seen two pieces of material that I carry with me. One piece is a 220 x 160cm sheet of Pertex and the other a piece of rip-stop nylon sewn into a tube which is open at both ends and 230cm long. They are both treated with Nikwax, pack down very small and only weigh 400 grams.
and together with a small bag of cord, meet many of my needs.
The tube I can use as a “mattress” for a pole bed, by sliding two long poles into it (I can stuff the tube with grass for insulation)
I can tie one end and fill it with leaves or grass as a mattress on the ground or put my equipment in it and tie it around me as a pack
I can attach cords at each end to make a simple hammock
or fold it, tie a knot each end and add long pieces of cord to tie to a tree branch and make a seat.
I can also get into it and pull it up to my shoulders for warmth and protection from the rain (I wrap the Pertex sheet around my head and shoulders for protection)
I used them both for this purpose on several occasions during my last Lapland trip.
The Pertex sheet I tend to use mainly as a tarp for shelter
I have no lashing points but instead use a stone or similar with a piece of cord
I place the stone under a corner of the material, wrap the material around it and then secure the cord around the stone
You can see how I use them here
If anyone knows where I can buy this type of material in larger sizes than 230 x 160cm please let me know.