Hello ? Such a problem, the child seems to be starting to go through …

Hello ? Such a problem, the child seems to be starting to go through two naps, in the morning and after lunch When it was three naps, he went to bed at 8, half 9 or 9 (several times) Now he's getting up at 9 to sleep, and can sleep until 11 Then at 2 and then until half 4 or 4 sleeps, obviously he doesn't get out until 8, yesterday woke up at half 8, but today at 7 I think this is a normal schedule for a baby at 9 months old, that he's already going to bed at 7? Wakes up at