Nocturia, or nocturnal polyuria, is the medical term for excessive urination at night. During sleep time, your body produces less urine that is more concentrated. This means that most people don’t need to wake up during the night to urinate and can sleep uninterrupted for 6 to 8 hours.
If you need to wake up two times or more per night to urinate, you may have nocturia. Besides being disruptive to your sleep, nocturia can also be a sign of an underlying medical condition. via healthline
Frequent Urination at Night Treatment