I was very tired so I took a power nap of 20 min.

Back in the day when I was still in college, I used to take numerous power naps throughout the day.

That has changed now. If I try taking a power nap, I end up sleeping for over 2-3 hrs.

Just a couple of suggestions, please download and install the Grammarly browser extension. This would help to correct all the grammatical mistakes in your post.

Also, refer to the markup guide that is pinned in our BOI community. This would help you to better edit all your posts.

Thank you.