Thank you everyone for your input. My dh had been doing this for 22 years. He just had knee surgery in Jan and they said he has the heart of an ox. Thank goodness. He is actually looking forward to getting a decent nights sleep. I think I can deal with the noise of the machine.
He is at the sleep clinic now. He spent the night there and has had to take "naps" all through the day today. He hates the wires of course and is sooooo bored. He is so used to sleeping on the recliner that he is very uncomfortable on the flat bed. We will see what happens after all is said and done. He really need this to be fixed. He is just so tired all the time. You could be talking to him one minute then the next minute he is out like a light snoring

Hopefully this also will push him to lose some weight !!! I hope!!!
I will let you guys know how he does when we find out.
Thanks