That sounds fine.
I am always up late & have a lamp on my desk going (turned away so the light is just weak) plus the light from my computer,and all my little bettas are fine with it.They are always frisky in the morning so I think they are used to it.Plus they all have caves and plants in their tanks to get in or behind if they want to.
As long as it's not full on glaring lights shining right on their tank,I think a soft night light type glow in the room is ok.
I am always up late & have a lamp on my desk going (turned away so the light is just weak) plus the light from my computer,and all my little bettas are fine with it.They are always frisky in the morning so I think they are used to it.Plus they all have caves and plants in their tanks to get in or behind if they want to.
As long as it's not full on glaring lights shining right on their tank,I think a soft night light type glow in the room is ok.