Girls, good day, it's been eleven months already, we wake up at 4-5 AM…

Girls, good day, it's been eleven months already, we wake up at 4-5 AM for the second night in a row, go for a walk for 1-2 hours and then fall asleep again. Although we usually sleep from 8 PM to 7 AM, we only wake up for feeding twice. Has anyone experienced something similar? How did you cope with such nighttime walks?