So my daughter is 3 and 1/2 and has a hard time settling down and going to bed. Just tonight it took almost an hour to get her to sleep. It doesn't matter how late she stays up, how early she gets up or how active she is bedtime is always a fight. We sing, read and talk to her, allow her to have stuffed animals in her room to play, nothing works. Has anybody used children's melatonin before? I was thinking of getting her some but wanted to know how safe and effective it was. Thanks!