Every ingredient in reBloom is GRAS (Generally Regarded as Safe), meaning that each could be an ingredient in traditional food and beverages without the dietary supplement label.    Functional claims on traditional food are required to act through nutritive properties (e.g. product X contains calcium which helps to build strong bones).  Since reBloom does not help you sleep by building muscle, bone, etc., and it also doesn’t contain any drugs, it needs to be classified as a dietary supplement.