I haven't been to the sleep doctor in a year -- on purpose.
My sleep hasn't been as good as it could be lately, I think wearing the same type of mask for multiple years is causing the problem. I've been wearing the same manufacturer's full face mask for decades. I often wake up and just have to take the mask off for a bit.
He agree and order a AirFit N30i for me. Love it. It's a nasal pillow, and connects at the type of the head. Used it last night, and I don't think I need the chin strap as opening my mouth is quite uncomfortable with it on.