Started playing this game (and i'm loving it) today, though my villagers keeps dieing due to lack of sleep, I know the hammock is a thing, i just have no idea how to place it.
Hammocks must be placed between two trees. You can press R to rotate the hammock if it won't appear. You need a space between the two trees as well. same goes for the Drying Rack so you can make dried fish while you bide your time until you can get your kabob engine going.