And as the above post says, untreated Sleep apnoea is dangerous. Besides the car accidents etc and other accidents through exhaustion, you are at higher risk of stroke, brain damage etc because constantly putting your body under pressure like that every night for years and years is dangerous.

But more importantly, my DH changed from being a walking zombie to being a lot happier and alive basically!

The sleep studies were good in that we had some good data about how strong the apnoeas were, how frequent, 0s stats etc. I recommend getting a proper one before and after the CPAP to see how it is all going.

Cabrini Brighton does them, and their waiting list isn't too long.