Disable iPod at certain time I find my self on my iPod (5th Gen) late at night (until 12 or 1 in the morning), and want to know if there is a Cydia tweak that locks me out of my device at a specific time.
You can do it with Activator. After installing it in the Cydia you can assign Actions to the Events. For example you can assign this workflow:

Anywhere &gt; Build &gt; Scheduled &gt; Sun,Mon,Tue,Wed,Thu,Fri,Sat 12:00 AM &gt; Save &gt; Done


Now select:

12:00 AM &gt; Lock Device


Although this workflow just locked your device and does not restrict the usage after the 12:00AM, it acts like an alarm.

The other tweaks that can do the restriction are: AppCap, Parental Controls.