For decades, Kate Edgley struggled with insomnia, reports The Guardian.

It began when I was expecting my first child. “Pregnancy insomnia,” Google told me, “is common in the third trimester.” The discomfort of a distended stomach, added pressure on the bladder and heartburn were the reasonable-sounding causes – and I certainly experienced all those symptoms in the day. But at night, I would easily drop off to sleep only to wake, suddenly and completely, assuming it was morning. But it wasn’t. It was 4am. Or thereabouts. I was not uncomfortable and didn’t need to pee. I was, simply, maddeningly, wide awake and hyper alert.