Is becoming a nasal breather possible?

[gopher72]

I have the double whammy of being a mouth breather and a side sleeper. My full mask is history. And if the hybrid doesn't work I'm left with no options (correct me if I'm wrong) but to try and become a nasal breather. Have any of you been successful at this transformation? How did you do it? Thanks!

[ChadBSr]

100% yes
Reduce sugar and processed food
Irrigate
Force yourself to use your nose day and night
Breathe low and slow

[Deborah K.]

Lots of people here have trained themselves to nose breathe only by putting their tongues behind their teeth as usual then sucking hard to hold the tongue up against the top of the back of their palate.  I tried, and it did not work for me, but I know many others have succeeded.