"At night" or "in night"

[edmondjanet]

I go to bed at ten at the night. or
I go to bed at ten in the night. According to grammar I know "at night" and "at noon" but here Is it possible or not?
Thank you.

[freezeframe]

I go to bed at ten at the night. or
I go to bed at ten in the night. According to grammar I know "at night" and "at noon" but here Is it possible or not?
Thank you.

"ten at night"

"ten in the night" is incorrect