Dear sanjaya_ganesh,
Yes. I have been practicing this on a few mornings. When one could understand his state in sushupti, and try to remain in that
state even in waking, it is the goal almost achieved. A Saint Poet says: ThoongAmal thoongi sukam peruvathu ekkAlam?
How can I get that state where I sleep without sleeping and attain bliss? Sri Bhagavan quotes sushupti example for more than
90 times in Talks.
Arunachala Siva.