>>2483401A UL hammock cost something like 80 bucks for a sub 11oz, just order some technical respirable fabric, gonna cost you 30 freedom money. A hammock is essentialy a rectangle and a rope on the shortest sides
A tarp is the same thing, buy some silpoly, sew two length together so you have a wider rectangle and tadah you got yourself a tarp that you can customize to your taste