عَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ كَانَ لَا يَرْقُدُ لَيْلًا وَلَا نَهَارًا فَيَسْتَيْقِظُ إِلَّا تَسَوَّكَ
It is narrated from Sayyida Aisha (may Allah be pleased with her) that whenever the Noble Prophet (peace and blessings be upon him) would wake up from sleep, whether at night or during the day, he would use the miswak.