Stiff Neck

I wake up in the morning with pain.My routine early in the morning is to open the window and comb my nice hair .Then go downstairs to watered my plants.After that, I will cook for breakfast.Today, I don't have a pleasant day! I wake up around 5am but I cannot move my head because my neck is sore.I try to do exercise turn it left and right even if pain.I remember that I am tired and sleepy last night. So,I did not notice that my position in bed is not good .I guess , I stick in one position only the whole night.That's why I suffer a stiff neck today.