I was on a 10-mile group hike for old decrepit people like me. We average 2 mph on the flats, and 1/2 mph on the hills (both up and down because we don't want to end up rolling head over heels on the way down.)
This trip was hilly and we were all tired by the time we took our 1/2 hour lunch break. While everyone else was scrambling around looking for a log to sit on or a dry spot under a tree, I hung my homemade walmart-$1 bin hammock, climbed in, and nearly fell asleep. I brought it with me because it is very light and packs into a gallon ziploc bag with ring buckles and straps.
I'm sure they were jealous.