Answer: Don't worry. About the only change you might have to make is his sleeping with a little mask over his nose.Your reward will be a energetic, well rested husband.Other than that, there are no changes other than long life.Note: After reading other answers, I feel the need to clarify that this a serious, deadly condition IF not treated.During apnea, the heart races, trying frantically to pump blood that has no oxygen in it (as it normally would) to the brain and other organs. This can cause a heart attack while asleep. This was often referred to as "passing peacefully in their sleep".Another dangerous side effect of sleep apnea, IF not treated, is falling asleep behind the wheel of a vehicle while driving. It is a common complaint and is often what finally makes a person seek help.Sleep apnea robs a person of the much needed REM state of sleep( rapid eye movement) and builds a huge sleep debt that can manifest itself in other physical and emotional ways.It sounds as though you may have apprehended it before it got out of hand. With the use of a cpap machine or other treatment, all of the above can be avoided. Other than sleeping with the cpap, life is normal, often better than normal.Sleep apnea is a very serious and life threatening condition if not treated. Many do not realize the severity of it nor do they really believe it is dangerous. BUT IT IS EASILY TREATED!