I LOVE these!!
My husband snores and this is only thing I have found that I can sleep in comfortably!
The only reason I have a 3 was that you have to remember to turn it off while charging or it doesn’t last all night.
These are perfect for my needs. The headband is soft and breathable, it doesn’t make me too hot while wearing it. The sound quality is what you should expect for a sleep phone, it’s not awesome but does the job. I use it to listen to podcasts that I fall asleep to. I can hear the podcast it masks sounds just enough but not enough so that you can’t hear, smoke detectors, or strange noises that SHOULD wake you up.
This is my third headband!. I started with the wired version, moved up to the wireless, and then this one. The sounds quality and comfort are the best of all the different ones I have tried. I use them to sleep. The reason I upgraded was I didn't care for the wire because I am a restless sleeper. The first bluetooth one was wonderful for many, many years. But eventually the battery did stop lasting through the night. This version with the wireless charging base (and not having to plug the headband in every morning is a terrific upgrade.