Pilot Trial in Sleep Laboratory Setting to Compare the Physiology of Night Time Bladder Function in Subjects With Overactive Bladder (OAB) Versus Subjects That Have Insomnia and Healthy Normal Subjects

Inclusion Criteria: * Must not have a urinary tract infection * Time in bed between 6.5 and 9 hours for at least 5 nights per week for preceding month * Usual bed time is before midnight (24:00 hours) and typically does not vary by ± 1 hour for preceding month * OAB subjects * OAB symptoms for \>= 3 months * Documented detrusor overactivity episodes within 6 months * Insomnia subjects * Diagnosis of chronic primary insomnia * History of \> 1 month of waking up more than 2 times per night and being awake for more than 60 minutes per night for at least 3 months Exclusion Criteria: * Diagnosis of both OAB and primary insomnia * Diagnosis of nocturnal polyuria * Diagnosis of BPH * BMI \>= 34