He usually gets up 3/4 times a night but 7 times is a lot we both are not sleeping well
Does your dad have any nerve problems or neurological conditions that you are aware of? It is first vital to have him checked with a Doctor for a physical exam. This is in order to determine any underlying conditions that could be causing this.
There are medications that exist for treating nighttime urination, so you can also ask a Doctor about whether this would be suitable.
If less invasive approaches aren’t successful, surgery methods such as sacral nerve stimulation are advised.
Is your dad on any new prescriptions, or ongoing medication that could be causing this? Often, medication can actually contribute towards nighttime leakage.
You also need to ensure he does not have a high fluid intake before bedtime or in the late afternoon. Water is the best choice for hydration, so I would ensure he avoids any bladder irritants such as sugary drinks or caffeine.