When getting up to urinate at night, occasionally maybe this is not a big problem. But if it keeps repeating and disturbs sleep, you should be wary. Conditions in which a person always pee at night, especially during sleep.
This disorder is caused by one of three possible causes: your bladder has difficulty holding urine, resulting in more urine than usual during the day, or you produce more urine during the night.
Some of the causes include: Enlarged prostate gland, Diabetes, Effect of drugs, Lifestyle.