I highly recommend against the Somerville Hospital. They didn't tell me in advance I wouldn't be allowed to take my meds [which I need at night to get more than an hour of sleep], then they put me in the pitch black room at 8 pm [I usually go to bed between 10:30 and 11] and ignored me when I buzzed the call button to get them to help me to the bathroom. Also, they only really seem set up to diagnose sleep apnea, which was bad because I went in to be tested for narcolepsy. It was one of the worse medical experiences I've been through and I have a lot of experience with poor medical care.