A paper presented at the Sleep and Breathing Conference 2015 in Barcelona suggests that playing the flute can cure or prevent the sleep disorder known as obstructive sleep apnoea.
A team of Indian researchers tested lung function in 64 people who played a wind instrument and 65 who did not. There was no significant difference in lung function, but those who played snored less.
It may also help to play the flute at the person who is snoring. Varese Density 21.5 is a pretty good deterrent.