Sunan Abi Dawud Book 2, Hadith 50
"He performed ablution when the sun had arisen high and led them in prayer."
"Allah takes your souls as He wishes, and returns them as He wishes. Stand up and call the Adhan to prayer." They (the Companions) stood and performed ablution. When the sun rose high, the Prophet (ﷺ) stood and led the people in prayer.
There is no remissness in sleep, it is only when one is awake that there is remissness when you delay saying the prayer till the time for the next prayer comes.