I'm surprised so many people actually use nasal masks. I think nasal mask is insufficient, since during sleep you may open your mouth and pressure is lost. Or if you're temperature sensitive, you get nasal blokage if the room temperature is too low and simply have to breath through your mouth. I was...

Soft collars are not that restrictive, there is still quite a lot of freedom for tilting and rotating your head. So it may work for some but it also may be insufficient. Definitely the most comfortable from all other solutions. It takes only a few nights to adjust to sleeping with soft collar then o...