it´s only me or sleep function is working worst from ever?

since update 12.00 or the sleep widget came to fenix 6, seems that the fenix 5 plus detect worst than ever before the sleep stages. The problems found are:

- not accurate sleep time even I modify the sleep time on my profile. I never have had this problem before

- not accurate sleep stage or weird, like so many hours of deep sleep or no deep sleep