What causes me to pee 5-6 times a night?

Called nocturia: Nocturia (urination at night) occurs in kidney disease or congestive heart failure due to fluid overload that moves from legs back to body/blood on assuming flat position at night. Another reason is enlarged prostate that makes bladder emptying incomplete. So, it fills up fast & needs to void frequently. If so, need a urologist to avoid kidney failure.