Waking Up in Middle on Night

If one were to go to sleep planning to wake up in the middle of the night to learn for a little but then go back to sleep do they say shema twice and birkas hashachar twice?

A – Once only
Q – Should this “once” be before the first nap or second? Because the first nap will end after chatzot layla.
A – Birkot atorah you must say before learning at night.
Q – Rav what if the person decides to go to sleep again after studying ,should he say birkot hatorah again upon waking up for the day?
A – No