There is nothing like waking up exhausted. You want to go back to sleep, but you can't. You aren't sure if you were asleep to begin with. You had laid in bed for so long in a half-asleep haze that you can't be sure whether you finally slipped into your dreams or not.
But going by how miserable you feel, trying to force tired limbs out of bed while your eyes want to close for just a little while longer, You can only assume the answer.
What time did you wake up anyway? 3 or 4 in the morning? What time did you go to bed? 9 O'clock? You should feel less tired, but the reality is that you took three hours of tossing and turning, praying for sleep, before finally slipping into it for just a few scarce moments before you're jerking back away at some ungodly hour just to spend the next two trying to fade away again.