I went through a few overnight sleep studies when it was suspected I had sleep apnea. There WAS a television in a common room in both places. No food where I was however. They're not expected to feed folks but perhaps in some cases maybe they do. Maybe you can bring a snack??? Best to ask...food at the wrong time may screw up your metabolism and compromise aspects of testing. I'm sure they'll advise you of all the details in time. Here's to it all going well. Bring some magazines and such too perhaps.