I am newly incontinent after a prostate surgery. I don't know if this will be a permanent situation or not.
I started out using the Assurance brand Pull-ups because initially after the surgery I was mostly continent. I found that as I pulled therm down and back up, the stitching around the legs which prevents leaking came undone and they would leak.
I went with a better brand adult brief for overnight, and a booster pad. I use the Because brand Booster pad in the briefs which allows urine to absorb in the pad until its capacity, i.e. 2 cups, is exceeded. The urine then flows through to the brief. I have used the Assurance brand brief during the day, also with a booster pad.
I will warn you that when the booster pad is full, and the brief is somewhat full, the brief gets heavy and will start sagging which will cause leaks. I have not found a good method of supporting the briefs when they are partially full. This is a work in progress.
What products are you using to manage your incontinence now? I have found that briefs, and Pull-ups, do not like the horizontal position. Urine follows the path of least resistance, which is frequently along the front of the brief/pullup and out the sides. The products are designed to have your penis aimed down in the brief/pullup. If it involuntarily changes position at night, that will cause issues too.
I hope you are able to find a solution that allows you to get some rest and stay mostly dry.