Ibn ʿAbbas said, "The Prophet ﷺ slept till he snored and then prayed (or probably lay till his breath sounds were heard and then got up and prayed)." Ibn ʿAbbas added: "I stayed overnight in the house of my aunt, Maimuna, the Prophet ﷺ slept for a part of the night, (See Fath-al-Bari page 249, Vol. 1), and late in the night, he got up and performed ablution from a hanging water skin, a light (perfect) ablution and stood up for the prayer. I, too, performed a similar ablution, then I went and stood on his left. He drew me to his right and prayed as much as Allah wished, and again lay and slept till his breath sounds were heard. Later on the Mu'adh-dhin (call maker for the prayer) came to him and informed him that it was time for Prayer. The Prophet ﷺ went with him for the prayer without performing a new ablution." (Sufyan said to ʿAmr that some people said, "The eyes of Messenger of Allah ﷺ sleep but his heart does not sleep." ʿAmr replied, "I heard ʿUbaid bin ʿUmar saying that the dreams of Prophets were Divine Inspiration, and then he recited the verse: 'I (Abraham) see in a dream, (O my son) that I offer you in sacrifice (to Allah)." (37.102) (See Hadith No. 183)  

أَنَّ النَّبِيَّ ﷺ نَامَ حَتَّى نَفَخَ ثُمَّ صَلَّى وَرُبَّمَا قَالَ اضْطَجَعَ حَتَّى نَفَخَ ثُمَّ قَامَ فَصَلَّى ثُمَّ حَدَّثَنَا بِهِ سُفْيَانُ مَرَّةً بَعْدَ مَرَّةٍ عَنْ عَمْرٍو عَنْ كُرَيْبٍ عَنِ ابْنِ عَبَّاسٍ قَالَ بِتُّ عِنْدَ خَالَتِي مَيْمُونَةَ لَيْلَةً فَقَامَ النَّبِيُّ ﷺ مِنَ اللَّيْلِ فَلَمَّا كَانَ فِي بَعْضِ اللَّيْلِ قَامَ النَّبِيُّ ﷺ فَتَوَضَّأَ مِنْ شَنٍّ مُعَلَّقٍ وُضُوءًا خَفِيفًا يُخَفِّفُهُ عَمْرٌو وَيُقَلِّلُهُ وَقَامَ يُصَلِّي فَتَوَضَّأْتُ نَحْوًا مِمَّا تَوَضَّأَ ثُمَّ جِئْتُ فَقُمْتُ عَنْ يَسَارِهِ وَرُبَّمَا قَالَ سُفْيَانُ عَنْ شِمَالِهِ فَحَوَّلَنِي فَجَعَلَنِي عَنْ يَمِينِهِ ثُمَّ صَلَّى مَا شَاءَ اللَّهُ ثُمَّ اضْطَجَعَ فَنَامَ حَتَّى نَفَخَ ثُمَّ أَتَاهُ الْمُنَادِي فَآذَنَهُ بِالصَّلاَةِ فَقَامَ مَعَهُ إِلَى الصَّلاَةِ فَصَلَّى وَلَمْ يَتَوَضَّأْ قُلْنَا لِعَمْرٍو إِنَّ نَاسًا يَقُولُونَ إِنَّ رَسُولَ اللَّهِ ﷺ تَنَامُ عَيْنُهُ وَلاَ يَنَامُ قَلْبُهُ قَالَ عَمْرٌو سَمِعْتُ عُبَيْدَ بْنَ عُمَيْرٍ يَقُولُ رُؤْيَا الأَنْبِيَاءِ وَحْىٌ ثُمَّ قَرَأَ {إِنِّي أَرَى فِي الْمَنَامِ أَنِّي أَذْبَحُكَ}  

It was short and performed with a little water.) I also got up and did the same as the Messenger of Allah ﷺ had done. I then came (to him) and stood on his left. He then made me go around to his right side. He then observed prayer and went to sleep till he began to snore. Bilal came to him and informed him about the prayer. He (the Holy Prophet) then went out and observed the dawn prayer without performing ablution. Sufyan said: It was a special (prerogative of the) Apostle of Allah ﷺ for it has been conveyed to us that the eyes of the Messenger of Allah ﷺ sleep, but his heart does not sleep.  

أَنَّهُ بَاتَ عِنْدَ خَالَتِهِ مَيْمُونَةَ فَقَامَ رَسُولُ اللَّهِ ﷺ مِنَ اللَّيْلِ فَتَوَضَّأَ مِنْ شَنٍّ مُعَلَّقٍ وُضُوءًا خَفِيفًا قَالَ وَصَفَ وُضُوءَهُ وَجَعَلَ يُخَفِّفُهُ وَيُقَلِّلُهُ قَالَ ابْنُ عَبَّاسٍ فَقُمْتُ فَصَنَعْتُ مِثْلَ مَا صَنَعَ النَّبِيُّ ﷺ ثُمَّ جِئْتُ فَقُمْتُ عَنْ يَسَارِهِ فَأَخْلَفَنِي فَجَعَلَنِي عَنْ يَمِينِهِ فَصَلَّى ثُمَّ اضْطَجَعَ فَنَامَ حَتَّى نَفَخَ ثُمَّ أَتَاهُ بِلاَلٌ فَآذَنَهُ بِالصَّلاَةِ فَخَرَجَ فَصَلَّى الصُّبْحَ وَلَمْ يَتَوَضَّأْ قَالَ سُفْيَانُ وَهَذَا لِلنَّبِيِّ ﷺ خَاصَّةً لأَنَّهُ بَلَغَنَا أَنَّ النَّبِيَّ ﷺ تَنَامُ عَيْنَاهُ وَلاَ يَنَامُ قَلْبُهُ  

Ibn ʿAbbas said, "The Prophet ﷺ slept till he snored and then prayed (or probably lay till his breath sounds were heard and then got up and prayed)." Ibn ʿAbbas added: "I stayed overnight in the house of my aunt, Maimuna, the Prophet ﷺ slept for a part of the night, (See Fath-al-Bari page 249, Vol. 1), and late in the night, he got up and performed ablution from a hanging water skin, a light (perfect) ablution and stood up for the prayer. I, too, performed a similar ablution, then I went and stood on his left. He drew me to his right and prayed as much as Allah wished, and again lay and slept till his breath sounds were heard. Later on the Mu'adh-dhin (call maker for the prayer) came to him and informed him that it was time for Prayer. The Prophet ﷺ went with him for the prayer without performing a new ablution." (Sufyan said to ʿAmr that some people said, "The eyes of Messenger of Allah ﷺ sleep but his heart does not sleep." ʿAmr replied, "I heard ʿUbaid bin ʿUmar saying that the dreams of Prophets were Divine Inspiration, and then he recited the verse: 'I (Abraham) see in a dream, (O my son) that I offer you in sacrifice (to Allah)." (37.102) (See Hadith No. 183) (Using translation from Bukhārī 138)   

بِتُّ عِنْدَ خَالَتِي مَيْمُونَةَ ذَاتَ لَيْلَةٍ فَلَمَّا كَانَ فِي بَعْضِ اللَّيْلِ قَامَ النَّبِيُّ ﷺ فَتَوَضَّأَ مِنْ شَنٍّ مُعَلَّقٍ وُضُوءًا خَفِيفًا يُخَفِّفُهُ عَمْرٌو وَيُقَلِّلُهُ جِدًّا ثُمَّ قَامَ يُصَلِّي فَقُمْتُ فَتَوَضَّأْتُ نَحْوَ مَا تَوَضَّأَ ثُمَّ قُمْتُ عَنْ يَسَارِهِ فَحَوَّلَنِي فَجَعَلَنِي عَنْ يَمِينِهِ ثُمَّ صَلَّى مَا شَاءَ اللهُ ثُمَّ اضْطَجَعَ فَنَامَ حَتَّى نَفَخَ ثُمَّ جَاءَهُ الْمُنَادِي فَآذَنَهُ بِالصَّلَاةِ وَقَالَ سُفْيَانُ مَرَّةً أُخْرَى ثُمَّ قَامَ إِلَى الصَّلَاةِ فَصَلَّى بِنَا وَلَمْ يتَوَضَّأْ وَقَالَ سُفْيَانُ قُلْنَا لِعَمْرٍو إِنَّ أُنَاسًا يَقُولُونَ إِنَّ رَسُولَ اللهِ ﷺ تَنَامُ عَيْنَاهُ وَلَا يَنَامُ قَلْبُهُ؟ قَالَ عُمَرُ وَسَمِعْتُ عُبَيْدَ بْنَ عُمَيْرٍ يَقُولُ رُؤْيَا الْأَنْبِيَاءِ وَحْيٌ وَقَرَأَ {إِنِّي أَرَى فِي الْمَنَامِ أَنِّي أَذْبَحُكَ} [الصافات 102]