I used to take a OTC sleep aid that contained Benadryl. That did a good job helping me stay asleep but left me feeling really groggy. And now some medical studies say that taking that long term can cause early mental decline and dementia. So I quit that and instead tried this product and have been using it for years. It does a great job of helping me fall asleep and stay asleep. And I wake up with very little if any groggy feelings. And the ingredients are safe and natural.