CPAP vs BiPAP: How to Choose the Right Airway Therapy

A PAP machine is essentially an airway splint that sends a puff of air to open the blockage at the retropalatal or base-of-tongue level. CPAP delivers one continuous fixed pressure through both inspiration and expiration. BiPAP sets different pressures for each phase — for example 8 cm H2O on inspiration but only 4 cm H2O on expiration — which many patients who can't tolerate CPAP's constant pressure find more comfortable to breathe against.

It could be related to the significant muscle wear and tear from extensive exercise, with the recovery process possibly interfering with sleep — but I have to be honest that I'm not certain about this specifically in athletes, and it would need further looking into.

That's common, and it's physiological. After a hard day, tiredness itself can cause snoring that night, and that's fine — not every episode of snoring has to be branded a pathology. It's only when it becomes chronic and disrupts day-to-day life that it needs to be looked into.

It's both. On the structural side, a blocked nose or another anatomical obstruction found on ENT exam explains the snoring directly — a very lean person with a badly deviated septum is the classic example, and fixing the septum sorts the problem. On the physiological side, obesity is a very common driver with no anatomical obstruction at all — soft tissue and neck fat simply collapse the airway during sleep, and lifestyle modification becomes the treatment rather than surgery.

It becomes a problem when it turns regular — daily snoring with mouth breathing and next-day tiredness, rather than a passing symptom during a cold or sore throat. It's an ignored symptom precisely because people say only their partner is disturbed. The referral triggers are: chronic nasal blockage affecting sleep, morning headaches, rising blood pressure in a young patient even if still technically normal, or snoring loud enough that family members are actively complaining. At that point it's time for a basic ENT exam to decide whether a sleep study or specific therapy is needed.

Primarily for very severe cases, where oxygen saturation falls into the 60s or high 70s, and for patients who either do not want surgery or are unfit for it.

Bypassing that level of obstruction requires very high CPAP pressures, and that is often the point at which surgery becomes the more appropriate option instead.

No. Mild to moderate OSA is generally better served by lifestyle modification before moving to a device or an operation.

BiPAP sets separate pressures for inspiration and expiration, for example 8 cm H2O on inspiration but only 4 cm H2O on expiration, which many patients find easier to breathe against. It becomes the fallback when CPAP is not tolerated.