>>1496612It's all the same silnylon (aka parachute fabric). You might get some with a higher or lower density or gr/m^2. The Hennessy might have 2 layers and a thicker bottom layer, but the principle is the same. And imo it's completely unnecessary. You either sleep in a sleeping bag or have an underquilt, I don't really see the point. The principle of gathered-end hammocks stays the same.
But sure buddy, if you enjoy gearfagging and spending big bucks to get complete systems in order to avoid doing actual research, I don't want to take that joy away from you...