There will always be discomfort, there will always be unease if you believe you are your body.
Whether you are awake or asleep.
Because if you believe you are your body and your identity ends where your skin ends, then your consciousness will always be contracted, densified. Misaligned with the truth.
You will always be just another object within creation, playing the game of loss and gain with other objects.
You will always be subject to the rules of biology, which are nothing more than the dense residues of the ocean of infinite consciousness.
However, when through your practice, you manage to identify yourself not only with your physical body but with that which is common in all creation, within and beyond the body, then you will transcend scarcity, space, time, and suffering.
When the consciousness of the self (pramatri bhava) is established in the body, the experiencer perceives:
"I am this dense body in the waking state,
I am this subtle body in the dream state,
and I am this even subtler body in the deep sleep state."
All people in the world have initiated (abhisikta) their consciousness of the self by inserting their selfhood into these three bodies. When the consciousness of the self is established in these three bodies, they are called the three veils, the three coverings.
You must surpass or exceed the consciousness of the self in these three bodily states, dense, subtle, and even subtler, because when the consciousness of the self is established in these bodies, then you perceive that you are these bodies.
The consciousness of the self in these three bodies is called "sarira".
For such a yogi, these three bodies, including the consciousness of the self, become offerings (havih) in the fire of God-consciousness or in other words, you in Akasha.
This is the great awakening of the Shiva Sutras.