Pull-up with more coverage in back?

I think your best bet is to try samples to see what works best for you. What works best for one person may not work well for another. The link in the post above offers samples free of charge. Another very good site is https://www.parentgiving.com/. They have a lot of different products that are high quality, and you can order samples in a pack of two for $2.99. They also have a phone number on the site where you can call to talk to a representative about what might be best for you. They are very helpful.

@tlh8553

A doubler added with the Depends could be what you need. Most adult incontinence underwear is primarily designed to absorb urine and contain feces. It's also designed for an ambulatory person who is standing rather than mostly in bed or using a wheelchair. To that end, padding in the rear is minimal to keep the look "discrete". Adult diapers would probably be better, but then there's the issue with acceptance.

You could slip a doubler into his Depends-- more towards the back-- to absorb his stools when runny. Doublers are not the same as guards; there is no waterproof backing.

Diaper Doublers | Adult Booster Pads | Vitality Medical

HB

DH is a back sleeper so overnight urine output runs downwards towards the bed, and his Depends needed some extra absorbency in the back to handle the volume. What’s working for us is the addition of a woman’s extra long, max absorbency overnight pad placed in the back of his Depends. The pads have a sticky back so can easily be attached inside the center back of his underwear. I position the pad inside so it reaches from the back waistband of the Depends down towards the crotch. (Turning the Depends inside out while placing the pad makes it easier to get it in the right position.) It’s working well to contain the urine volume, and he hasn’t complained of any discomfort. Plus the pads are readily available at any big box store.

My husband has urinary incontinence and is a back sleeper too and sleeps all night, about 8 hours. We use high absorbency pull-ups and then add a woman’s type long high absorbency pad like Kibbee mentioned, but I poke about 5 tiny holes in the bottom layer only, the sticky part, so that when the pad fills it doesn’t overflow to the sides of the pull-up underwear right away, but with the tiny holes goes more into the middle section of the pull-ups. This helps protect the inside of his upper thighs when leakage occurs. Like Kibbee also mentioned, these heavy duty pads are available at most of the big box stores. Poking the tiny holes on the sticky backing can be a little challenging but we’ve had good results so far. I also ordered some booster pads but haven’t tried them yet. The high absorbency pads look thicker.