How sleeping positions helps AHI numbers

calusa wrote:

Yes, gravity does work but head posture probably has more of an effect on compliance of the airway. If one extends the neck (tilts head backwards), it will tend to stretch the airway and reduce airway compliance, resisting collapse. Vice-versa if you tilt your head forward.

What does "compliance of the airway" mean?

Compliance relates to the "stiffness" of the airway. If you reduce compliance, you increase stiffness (make it harder for the airway to narrow/collapse). If compliance is increased, you reduce stiffness (make the airway floppy and easier to collapse)

calusa wrote:What might this mean for back-sleepers with OSA -- would this mean a thicker pillow would be better, by keeping the neck tilted forward? Or am I understanding this backwards???

Tilting your head back while sleeping on your back, in theory, should reduce OSA severity. But every airway is different so this might not work for everyone.

JimP wrote:
Just checked Amazon and there are a lot to pick from. Have any of you tried several and can recommend one of another?

My husband and I both wear soft cervical collars. We have used a couple of different brands and all are OK.

This is our favorite - http://www.amazon.com/Carex-Health-Bran ... eck+collar