(04-26-2017, 02:41 PM)I think, though, that an adult pacifier is more reliable (especially for the great majority of adults who don\t suck their thumb) because it's a lot less likely to leave one's mouth overnight, especially if there's a chin strap attached with mild pressure. I'm actually a bit surprised that little has been written about this as it's well known that a form of an adult "pacifier" exists that promises to deal with sleep apnea, though reliable data isn't available. This device looks like a pacifier but actually isn't in that one's tongue is meant to be vacuum sealed into it and there are many reports that it isn't very successful.My experience with an adult pacifier, made from silicone, and at the correct size, along with mild chin strap pressure absolutely works for me. I think it's even better than my thumb because I think I occasionally put my thumb in and out during the night (though I'm not completely sure about this). If a pacifier falls out during the night, it stays out, and this hasn't happened. I don't have experience with the latex version of adult pacifiers but I tend to think they aren't as good, being too soft and prone to deterioration, wear and allergy sensitivity. Sleeprider Wrote: That act of sucking makes it nearly impossible to have a leak from the mouth when using nasal pillow.  I'm not going to judge you or recommend anyone take up the habit, but you're certainly not alone.  An internet search of "adult thumb sucking" returns countless results.