Clinical studies have shown that, in patients with mild to moderate OSA, the Zzoma was equivalent to CPAP therapy at normalising their disrupted breathing to less than 5 events an hour (Apnea Hypopnea Index <5). It was found to be similar to CPAP therapy in regards to effects on sleep quality and blood oxygen levels during sleep (nocturnal oxygenation).1
References: 1.Permut I, Diaz-Abad M, Chatila W, Crocetti J, Gaughan JP, D'Alonzo GE, Krachman SL. Comparison of positional therapy to CPAP in patients with positional obstructive sleep apnea. J Clin Sleep Med 2010;6(3):238-243.