reBloom does not cause morning grogginess, which is the key area of concern for most consumers when considering sleep aids. reBloom is natural, safe, and clinically proven, and like anything you put in your body, there is always the rare possibility of side effects. There are no known common side effects of the ingredients in reBloom (except great, natural sleep!), and unlike other sleep aids, reBloom is drug-free and non-narcotic, so you do not have to worry about the side effects commonly associated with over-the-counter sleep aids (e.g. Unisom®), cold medications or pain relievers (e.g. Benadryl®, TylenolPM®, Nyquil®), or prescription sleep aids (e.g. Ambien®, Lunesta®). If you believe you have experienced side effects as a result of drinking reBloom, consult with your physician and report them to our customer support line (1-800-425-8131).