Do you feel that it is difficult to stay up late as you grow older?

It was possible to stay up as late as 12am or 1am in the night before sleeping when I was at a younger age (teenage, 20s).

However, as I grow older (mid 30s), I find it difficult to stay up late at night. I need to sleep by 10pm or 11pm. If I don't, I will feel groggy the next day.

I don't know if this is normal when a person grows older.

Do you feel that it is difficult to stay up late as you grow older?