I'm an insomniac, when I close my eyes to sleep my mind starts racing. It's like all this different stuff is flying around like a tornado above my head and I reach up, grab something, put it in my mouth & chew it for a bit, then spit it out & repeat. I've tried MANY things & Zensong is my savior. I turn on the lightening storm and set a 30 minute timer & I've yet had to turn it back on. I've had Zensong for about 10 days now. Thanks for creating it. The only downside, that I've noticed, is that some of the sounds are way too quiet to hear. So you have to Bluetooth to a speaker. But all in all, I've give it a raving 5 stars all day long.