I love to listen to podcasts as I fall asleep, so I researched under-pillow speakers and this one seemed to have the design that took care of all my concerns. I was most worried about the battery overheating under the pillow. Since it's so long, the battery and controls stick out from under the pillow while I can still hear it if my head is in the middle of my pillow.You can control the volume, change the track, pause/play, and set/cancel a 2 or 4 hour timer so it saves battery after you fall asleep. The only weird thing is the timer doesn't completely turn off the Drowsie, it's still connected to my phone's Bluetooth in the morning. This has made it difficult to use with my sleep tracking app that gives me an alarm during a provided wakeup window. The alarm sounded through the Drowsie, which was not loud enough to wake me. Thankfully I set a backup alarm in the Samsung app, and that alarm sounded through the Drowsie and the phone. It's a mild inconvenience compared to all the benefits the Drowsie delivers, though.I used to fall asleep with a single earbud in, but my ear would often ache the next morning. Or I would find the earbud rolling around in the bed the next morning. Using an earbud meant I couldn't find my most comfortable sleeping position because I had to pick one side, or sleep on my back. Now it doesn't matter, I love this thing!Edit: The Drowsie now fully disconnects from my phone when I use the timer on the Drowsie, so I can use my sleep app or any alarm without issue. It happened after the most recent Android update, so it appears it wasn't an issue with the Drowsie itself.