I'm really glad I took the nap because it refreshed me.
Why did you need to feel refreshed?
I was tired of all these things going on. It felt so good to have a rest.
It's good to take a break whenever you are feeling drained, and a quick nap can be very refreshing.  Just make sure that you are not shirking any important responsibilities that need to be taken care of right away.
I'm not doing that, I'm getting all these things done.
Making sure you take care of your mental health is important. You can actually be more productive if you take breaks because you're allowing yourself the chance to recharge.