Learn English – Is using redundant words (e.g. “7am in the morning”) grammatically correct

grammaticalityredundancy

Is the use of redundant words grammatically correct? For example:

I wake up at 7am in the morning.

I came here as because you are ill.

I wake up at 7am in the morning.

This is grammatically correct but odd sounding, as it implies there's a 7am that doesn't exist in the morning.

I came here as because you are ill.

This is not grammatically correct. It looks like you are trying to join 2 clauses with 2 subordinating conjunctions and that does not work.