Study links use of touchscreens to missed sleep in toddlers

Study links use of touchscreens to missed sleep in toddlers.......each hour spent using a touchscreen led to 16 minutes less sleep.   

Reading this you may begin to instantly think, what am I doing to my children?

I'll be to first to raise my hand up to admitting my son particularly spends too much type on his gadgets.  This article makes me now put this high on my priority list.  However, is this just a short term commitment and how good of a judgement is it?