Good, but needs work.

It does what is says itll do. The volume does decrease over time. I find this helpful, because when I fall asleep to my music, I dont usually put a timer on it because sometimes I dont fall asleep fast enough, and my music will just cut off. So I leave it on, and I find myself waking up abruptly in the middle of the night to turn it off. So this app helps me there. One thing that could be fixed is the sound could begin tapering off earlier, right now it only does it closer to the end of the time. Also, it would be nice to have a longer timer to put it on; it only goes up to 90 minutes.
Lastly theres this annoying glitch where if you have headphones in, the little volume adjustment screen pops up and never fades away as it should. It just stays there unless you take out the headphones. You can see it there even of you exit the app and enter the other one. This needs I be fixed pronto.
All in all, this is a good app and Im looking forward to future updates.

Ericka Suarez-Lewis about Dozzzer: Sleep Sounds