You need sleep to rejuvenate your body and feel energized for the day ahead. Yet a good night’s rest can be hard to come by when you have ankylosing spondylitis (AS). Between 35 and 90 percent ...

I have no qualms with hiking miles to summit a mountain or sliding on my butt to get to the bottom of a canyon—but sleeping on the ground with only a thin layer of nylon separating me from the ...