I posted this in another spot but this may be a better place.

I have noticed that most photos of hammocks include a tarp. Is that for weather protection and or dew? I like to see the stars when sleeping out.

Second question. I am thinking about a tarp. The Kelty Noah looks like a good value. Which size would you get?

I have just received a WBBB and have a Green Mountain Double. Most of the use will be warmer weather but maybe a little rain.