question #2 Sahih al-Bukhari 6325, Book 80, Hadith 22 : What is the significance of expressing gratitude upon waking up according to the Prophet (ﷺ)?

Whenever the Prophet (ﷺ) lay on his bed, he used to say: “Allahumma bismika amutu wa ahya,” and when
he woke up he would say: “Al-hamdu lil-lahilladhi ahyana ba’da ma an atana, wa ilaihi an-nushur.”