How many times in the night do you change your baby's diaper?

normally for new born or baby, I will change more regularly. During the night feeding, I will clean their private area and apply thicker bottom cream before putting on fresh set of Diaper. As baby cannot turn their body yet, therefore their bottom will be very wet at one area and this will lead to Diaper rash. This type of rashe is very painful and need more time to recover by airing their bottom regularly etc. Prevention is better than cure:)