How Did He Not Wake Up?

Well? How did he not wake up?
If my head slips slightly from the pillow, I wake up.
If my foot peeks from under the duvet, I wake up.
If I stray even slightly close to the edge of the bed, I wake up.
He is 98% of his little self on the floor, he has also turned 180• in the opposite direction.
How did he not wake up?