Babies may exhibit increased urine production during sleep, especially if they consume liquids close to bedtime. However, this doesn't necessarily mean they pee more when asleep. Nighttime wetting is often a normal part of a baby's development, and factors such as age, individual differences, and bladder capacity contribute to variations in bedwetting patterns. If you notice a significant increase in nighttime wetting or have concerns, it's advisable to discuss the matter with your paediatrician for personalized advice.