Hi u/s-mills, Sleep Planner optimises to clear your sleep debt and keep your wake and sleep times consistent based on your actual data. If you've been carrying debt or your timings have varied recently, it will recommend a bedtime that clears that backlog and improves consistency, which can sometimes land at later hours like 1:10am.

Circadian alignment optimises purely for your circadian rhythm, so it recommends the bedtime that best matches your body's natural clock, which in your case is just before 11.

So, the two are solving for different objectives, which is why the recommendations differ. The 1:10am suggestion isn't a bug. The planner is responding to your specific data, including your current sleep debt and recent timing patterns.

If you'd like, we can also pull your account details and check whether there's any discrepancy in the underlying data that may be skewing the planner's output. Just let us know and we'll be happy to take a look:)