Are there any MP3 players that feature automatic shut-off like the sleep timer found in clock-radios?

Yes, some MP3 players do feature an automatic shutoff or sleep timer function, allowing you to set a specific amount of time after which the player will automatically power off. This can be useful for listening to music or audiobooks while you're falling asleep, or to conserve battery life if you forget to turn off the player manually.

Here are a few MP3 players that typically offer a sleep timer function:

1. SanDisk Clip Sport: This compact and lightweight MP3 player comes with a sleep timer that can be set in increments of 10 minutes, up to a maximum of 240 minutes (4 hours).

2. Sony Walkman NW-A55: This higher-end MP3 player offers a sleep timer that can be set in increments of 1 minute, up to a maximum of 180 minutes (3 hours).

3. FiiO M3 Pro: This budget-friendly MP3 player features a sleep timer that can be set in increments of 1 minute, up to a maximum of 180 minutes (3 hours).

4. AGPTEK Rocker: This rugged and affordable MP3 player also includes a sleep timer function, with settings ranging from 10 minutes to 2 hours.

5. NUX NPK-10: This compact MP3 player offers a sleep timer that can be set in 5-minute intervals, up to a maximum of 120 minutes (2 hours).

It's important to note that the availability and specific settings of the sleep timer feature may vary depending on the exact model and firmware version of the MP3 player. Refer to the user manual or product specifications of your specific MP3 player for more information about its sleep timer capabilities.