Horrible Horrible Horrible experience. I should have known from my last visit 5 years ago but I figured they had to have changed in 5 years and I was right. They actually got worse. So I went in for an updated sleep study to find out what pressure I needed to be at. They said they needed to see if I had sleep apnea?? WTF They were the ones that diagnosed me with it 5 years earlier and since I gained weight I really doubt it went away. So they hooked me up to all the wires and then told me that I needed to sleep 2 hours without my mask "I can't sleep without it" I have become dependant on it and need it to breath I told them. So after about 4 hours of pure misery of 3 to 8 minute sleep intervals and waking up gasping for air they said okay now you can use a nasal mask. I have used a face mask since I have been diagnosed with sleep apnea. So when I was given a nasal mask I told them that I couldn't use it. I wasn't trying to be difficult I was just used to the mask. All I wanted was to know where I needed to be at pressure wise. They said just give it a try which I did and just like I said I was unable to sleep. I repeatedly told the lady that I can't sleep, they had to have seen me tossing and turning but still I got know where. At that point I was really getting pissed off and was just going to leave the place but then I knew I would have gotten billed for walking out. So needless to say I stayed and and the torture continued. The following morning the lady told me they were unable to get a REM reading on me and that they may need me to come in again for another night. I told her that ain't happening. All I wanted was to find out what pressure was best for me. So what was the point in all of this if they didn't even get a proper read out?? I was due for a new machine they said so I inquired about the new ASV machine and the lady kind of chuckled and said the ASV machine is too expensive and your insurance won't cover it so you are going to get one of the cheaper machines. I can't believe how rude she was when telling me that. I could go on and on about how horrible my experience was with this place. Stay away you have been warned.