The Prophet ﷺ would not sleep until he had recited Al-Musabbihat, and he would say: “In them is an Ayah that is better than a thousand Ayah.”
أَنَّ النَّبِيَّ ﷺ كَانَ لاَ يَنَامُ حَتَّى يَقْرَأَ الْمُسَبِّحَاتِ وَيَقُولُ فِيهَا آيَةٌ خَيْرٌ مِنْ أَلْفِ آيَةٍ هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ