Waking up tired every day? Sleep doctor reveals what your bedtime routine says about your health

We all have joked about being “tired all the time” as part of adult life. But what if those exhausted mornings, midnight wake ...

Wondering if you’re a ‘light’ or ‘deep’ sleeper? The science isn’t that simple

If the slightest sound wakes you, you might wish you slept more deeply. But several factors shape how much shut-eye you get.