How is the missed Fajr prayer made up after waking up and not getting up to perform it due to exhaustion?

If one of you sleeps through a prayer after having taken measures to wake up, there is no blame upon him, and he must pray what he missed, for the Prophet, peace and blessings be upon him, said: "If one of you oversleeps or is heedless of a prayer, let him pray it when he remembers it, for Allah says: 'Establish prayer for My remembrance.'" However, if he sleeps through it after waking up, then in addition to making it up, he must repent and seek forgiveness.