CPAP improves sleepiness in mild and moderate obstructive sleep apnea

This article discusses research by Dr. Weaver showing how CPAP benefits patients with mild to moderate obstructive sleep apnea (OSA), not just severe OSA. This has been my clinical experience - I find that the OSA severity does not often match how sleepy patients feel. I've had some patients who barely meet criteria for OSA be extremely sleepy, and improve significantly with regular CPAP use.