Fitbit might end up losing sleep over its next big life hack, reports The Verge.

But detecting or monitoring sleep apnea might be more challenging than it seems for a consumer wearable company like Fitbit, and is more complicated than adding oxygen sensors to a watch and cranking data through algorithms. Right now, diagnosing and treating sleep apnea usually requires an advanced sleep study and a prescribed treatment. This means Fitbit will have to seriously consider whether it goes the FDA approval route, or whether it’s going to attempt to detect sleep apnea with its usual direct-to-consumer devices, which would still require a serious validation process.