I’m 77 with BPH. I used a bottle overnight while lying in bed for years and always awoke to pee 4 or 5 times. Then, I realized that gravity will further empty my bladder while standing up. So now I’m up only 2 or 3 times, even though I get up and walk down the hallway to our toilet. The bottle idea is great for urgency emergencies, like pulling over in urban areas to use in the car, but not so good for overnight, in my experience.