There are two people that are very close to me that have had that same problem……..My father, who was not an alcoholic and a co-workers husband…they both went to a sleep clinic and were monitored through the night……and that is what they were diagnosed with is sleep apena……they were both prescribed a breathing machine which the insurance covers the cost……so when they do stop breathing at night…..they have the breathing machine to breath for them…….in long term this is going to help them stop problems in the future that would be caused…..heart, and other things……..it take about a week for them to start feeling a difference……they are not as tired, which gives them more energy……you may want to check into a sleep clinic if he is willing to do so……..