So Alice was extremely overtired today and fighting sleep with all her might. I turned on my white noise app and she screamed like I bit her. So I changed it to rain on a tin roof. Holy magic. Child was out in less than 5 minutes. I have the White Noise Lite app on android. Pretty sure its on apple, too. The rain on a tin roof is a downloadable sound through the app. Its amazing. Only drawnack is it won't run in the background. The noise stops when you close the app. Hope it works as well for you!