1) One ברכות התורה works for the entire day because a Jew is constantly living Torah and thinking about Torah 🧬

2) So what if you take a nap? 🥱

-A quick nap is definitely not enough of an interruption to need a new ברכות התורה 🏃‍♂️

-Also מנהג העולם is NOT to make a new bracha after a long nap 😴

3) In regards to ברכות התורה, the night is NOT considered a new Halachic day so no new bracha before learning at night ❌🌅