If we're talking about effectiveness in AD, there are LOTS more studies to go, so I don't expect to see a result there for at least 5 years. However, effective

If we're talking about effectiveness in AD, there are LOTS more studies to go, so I don't expect to see a result there for at least 5 years. However, effectiveness is subjectively felt on day one (depending on your current sleep habits, it's more effective in people who are somewhat sleep deprived). We link to a bunch of the existing research on our website, and more than just "sleep time" we can track effectiveness to biomarkers such as HRV.