J.E.
We didn't have a tot clock, but we had a floor lamp on a timer a couple of rooms away. If the light was still off when they woke up in the morning, our children had to stay in bed. Once the light was on, it was ok to get up for the day. We made sure they could see the glow from the light, but it wasn't bright enough to wake them up. You can buy timers from any hardware store for less than $20.00.