You look tired and sleepy. Why?

I only slept for three hours last night. At ten, we heard a cry
from Mrs. Wayan's home. She is our next-door neighbour
She's 70 years old and very weak. She lives alone. We went
there quickly, and we found her on the floor. She just fell.
She could not move her hands and her legs. At 10.30, my
parents and I took Mrs. Wayan to hospital. My father and
I sat in the front seats. In the back seats, my mum was
holding Mrs. Wayan. In the emergency room, a doctor
examined her. Then he said Mrs. Wayan had to stay in
the hospital. When she was already in the ward, we went
home. It was 2 a.m.​

You look tired and sleepy. Why?