….I don't remember everything about my sleep study a few years ago but it took the young man about 50 minutes to hook me up to all the wires; then i trie to go to sleep and he kept coming into the room and the head of the bed had some equipment on it and he several times double checked some of the wires etc., also i had to urinate through the night so that was a bit of a problem an having to be careful of the wires; we were awake/woken up in our individual rooms at 6am…. when i got out of bed i noticed on of the wires was off. few weeks later met the dr. very nice but said something to the effect i woke up or 60 times and suggested one of those machines for through the night but I didnt get one. I thought it would be like a simple oxygen mask but it has to press on your face and not let any outside air in and my face is sore and I have tmj and dry eyes etc., so decided against it. so i still have sleepless nights but feel i am not a good candidate for the machine…also they have to be cleaned or sterilized each week or so and I would be afraid of germs etc. however, many people have the study done and benefit considerably from the night mask, so am not saying they dont work, just not for me. But no wonder i kept waking up with so many wires attached and trying to move around….i got the lab tech to take a photo of me with all the wires and i would put it up here but i think you can envisage it!! one woman in another room did not sleep the entire night! good luck. J.