Sleep tracking on apple watch / iPhone super buggy and useless

Using Apple watch SE 2024 and iPhone 16 pro, both on the latest software. My sleep stages look a lot worse than they actually are, but the worst part and obvious bug is that none of the times add up. Take last night, the "Time asleep" is almost 2h GREATER than"Time in bed"?! Summing up the time in different sleep stages it's almost 20 min greater than the total Time asleep showed? Etc etc. What the actual f apple, do you have monkeys working in quality control??