My million pound idea

Nichola
Invent a device that lets you know exactly how long your child will sleep for through the night. That way you can utilise your sleep time wisely and not squander it playing Pokemon, reading every social media page 100 times and wondering how long it'll be until the mini human reanimates. 
11 hours I wasted through the night. 11 effing hours I could have slept uninterrupted for the first time in 3.5 months.