Clock for Toddlers

There is a street light across the street, shining its light directly into The Boy’s window.  No matter when he wakes up, he opens his blackout curtains and it looks like it’s morning.  I was looking for something other than me that would tell him at 4:30am that he should go back to sleep.  I came upon this tot clock which I think is brilliant.  The face of the clock has 4 colours which parents can set.  Yellow for wake time and dark blue for sleep time…and also red and green for time out or activity times.  On the expensive side at $49.95.  Nice to know such things exist!