Millions of people with obstructive sleep apnea know the nightly struggle of wearing a CPAP mask. While continuous positive airway pressure remains the gold standard treatment, many patients stop using it because of discomfort, dry mouth, noise, or claustrophobia. Now, a new sleep apnea pill called sulthiame is drawing attention after clinical trial results showed it reduced breathing interruptions by up to 47%. The big question for patients frustrated with CPAP is simple: when could this treatment actually become available?