How can nothing feel good?

Well, I guess it's a personal thing. Mainly, it is a relief to be free from 'what is usually going on in our lives'. From this relief springs a pleasant feeling, and from the pleasant feeling we can open a window into contentment. Once we are feeling content and spacious, we can let go of many mental objects and rest in a still place. Our reactivity is on the wane and we have connected up the dots of feeling settled.

Alternatively, you might get bored with nothing to do and nothing on your mind. This is always a risk in this type of situation. Perhaps boredom means something else?