3 doctors recommended this sleep hygiene tip and it’s why I’m finally waking up with loads of energy — here’s how it works

My eyes close at 11 p.m. and my alarm goes off at 7 a.m. — I should be waking up fresh as a daisy, right? But even though I’m getting eight hours sleep, I spend the morning feeling groggy (this is known as sleep inertia). I asked three…