Thanks NancyAZ.....second time I got that advice...I will watch the immediate area of the vent.....

Almost convinced it's time to sleep naked with no covers on the Tundra....hmmm.....if a vent hole whistles in the forest....will anyone hear it??

Thanks Bright Choice......I was using a small pillow...will try a medium for a few nights

Thanks Jersey Girl....I am told that when it happens there is nothing in the area that would cause any interference or vibration from the air coming out of the vent holes....

sooooooooooooo frustrating.....grrrrrrrrrrr

Thanks LSAT....the hose is free and clear from the vent holes.

Hoping there might be some good advice out there.....I have a Remstar Plus Cpap model # 1005960....an older machine but hardly utilized before....starting too now....anyhow....I just purchased a new mask for it which I love...very very comfortable......the problem is the vent holes are sometimes qui...