When you wake up and ignore the wake up screen and go on sleeping for an hour, why isn't that detected as sleep?

When you wake up and ignore the wake up screen and go on sleeping for an hour, why isn't that detected as sleep?

I cannot understand that this is not detected as sleep or at least as an additional nap. When I woke up and when I went on sleeping it was outside the sleeping schedule. Is that the reason? If it's like that i cannot understand that thus isn't fixed.

Is this the usual functionality or is it only my Epix Pro gen 2?