Making the standing, bowing, prostrating, and sitting between the two prostrations, equal in length when praying Qiyam al-Layl

It was narrated that Hudhaifah said: "I prayed with the Prophet (ﷺ) one night. He started to recite Al-Baqarah and I thought, 'he will bow when he reaches one hundred,' but he carried on. I thought, 'he is going to recite the whole surah in one rak'ah,' but he carried on. He started to recite An-Nisa' and recited (the whole surah), then he started to recite Al Imran and recited (the whole surah), reciting slowly. When he reached a verse that spoke of glorifying Allah (SWT), he glorified Him. When he reached a verse that spoke of supplication, he made supplication. When he reached a verse that spoke of seeking refuge with Allah, he sought refuge with Him. Then he bowed and said: 'Subhana Rabbiyal-Azim.(Glory be to my Lord Almighty)', and he bowed for almost as long as he had stood. Then he raised his head and said: 'Sami Allahu liman hamidah (Allah hears those who praise Him)', and he stood for almost as long as he had bowed. Then he prostrated and started to say: Subhana Rabbiyal-'Ala (Glory be to my Lord Most High),' and he prostrated for almost as long as he had bowed.'"