Mixed

Continuous positive airway pressure (CPAP) therapy significantly improves subjective and objective daytime sleepiness and self-assessed health status in patients with minimally symptomatic obstructive sleep apnoea (OSA), but does not reduce calculated 5-year vascular risk.

If you have minimally symptomatic OSA, CPAP can still significantly reduce your daytime sleepiness and improve how you feel daily, even if your breathing interruptions aren't severe. However, do not expect this treatment to lower your long-term heart disease risk or blood pressure. The benefit is strictly symptomatic. You should trial CPAP to see if the improvement in alertness and health status justifies the nightly inconvenience, but manage expectations regarding cardiovascular protection.