I don't think there is any need to do this. We leave a dim light on all night in our living room and the tank is in the foyer. Haven't ever had any issues.
Sorry if I miss understood the question.. I thought you where talking about the lights from tank effecting you (lots of people worried about blue lights on eye health) or like I said giving neighbors wrong impression.. lol. Ambient room lighting at night will have little to no effect on your tank.