He needs to talk to his doctor about his snoring, it could be a sign of
sleep apnea which does have treatment. If his doctor suspects
sleep apnea, he or she will probably order a sleep study test in a facility (usually a hospital sleep lab) that would monitorsyour hubby overnight for periods of apnea, oxygen levels, snoring, any disturbances of the heart rhythm, his brain wave activity etc...
Definitely push him to see his doc...