How many studies support Sleep Apnea Treatment?

Obstructive sleep apnea (OSA) treatment is well supported by multiple clinical reviews describing CPAP as the primary evidence-based therapy, along with a systematic review and network meta-analysis of randomized trials finding myofunctional therapy improves sleepiness and sleep quality as an adjunct treatment, though without significant change in the apnea-hypopnea index itself. That's backed by 7 published studies in Vitaebase's database, the most recent from 2025 -- a modest but real research base.