It is narrated from al-Aswad (may Allah have mercy on him) that Sayyidah Aishah (may Allah be pleased with her) said (about the practice of the Messenger of Allah (peace and blessings be upon him)): "He (peace and blessings be upon him) would sleep in the early part of the night and wake in the last part, and pray whatever had been decreed for him. Then, when he had completed his prayer, he would return to his bed. Then, if he (peace and blessings be upon him) had need of his wife, he would go to her, and then sleep in that same state without touching water. Then, when he heard the first adhan, or the voice of the caller, he would get up. If he (peace and blessings be upon him) was in a state of major impurity (janabah), he would take a ritual bath (ghusl), and if he had no need of a bath, he would perform ablution as for prayer. Then he would pray two rak'ahs, and after that he would go out to the mosque."
Hadith Referenceمسند أبي يعلى الموصلي / مسند عائشة / 4794