Taking any over the counter sleep aids including Benadryl to get to sleep every night is not a good thing for your health.
So try to go at least a few nights without taking any sleep aids including Benadryl since taking Benadryl or any other sleep aids too often can cause heart problems, kidney disease, low blood pressure and a host of other health problems.
But it's up to you whether you want to continue to take the Benadryl or sleep aids every night but it's not recommended to take sleep aids every night.
But I do understand how it's hard to sometimes get to sleep without sleep aids.