Kundalini never sleeps.
Kundalini is your lifeforce.
It is always active.
You can safely awaken it to Ajna Chakra through SKY practices.
Once awakened, you can start to feel the tingling sensation of it.
If you stop your practice, your kundalini force will go down to Mooladhara Chakra.
You will then stop sensing its vibrations.
Be Blessed by the Divine!
Krish Murali Eswar.