I should have mentioned she taught us about the difference between feeling tired and feeling sleepy. Sleepy is a brain issue that controls the sleep rhythm. Tired is more of a physical or mental exhaustion. Increasing blood flow with activity can resolve tiredness. Daytime sleeping is usually in response to feeling tired but does not resolve a feeling of sleepy. Nightime sleeping is usually in response to being sleepy.

It sounds like your body is responding positively to you taking care of feeling sleepy.