This is definitely possible using Notezilla . To repeat a reminder at specific intervals for a Windows sticky note, select the Repeat tab and configure required re-occurrence interval for the reminder. You can repeat every x minutes. The reminder window has all the repeat options. After setting the repeat reminder time, make sure you do not 'Snooze' the reminder. Instead 'Dismiss' it so that it repeats several times.
Watch this short video for further clarity: