Definitely have her checked out for a UTI first. But if that’s not the case, I’ve had some luck with a couple of things for my Great Dane with sleep incontinence. In her case it is definitely related to how relaxed she is when she sleeps (she never has accidents away from home as she doesn’t relax enough), so I could definitely make an argument for the furniture being more comfortable :-). She is not a candidate for Proin because of severe anxiety, but I have been using a homeopathic product called Leaks No More for years - I’m not a huge believer in homeopathy, actually, but this stuff unquestionably works and if I run out she immediately starts having accidents again. In her case, chiropractic adjustments are really crucial - for some reason, her incontinence seems to be related to something getting out of alignment and pressing on a nerve, because chiropractic adjustments every three weeks resolve it completely (unfortunately it’s just not always feasible to get her there as the chiropractor is an hour away, and the local one treats her a little differently and it doesn’t work for whatever reason). That is definitely not the cause in every dog, but it may be worth trying. I’ve done acupuncture with her as well, which doesn’t seem to change the results in her particular case, but I think it’s definitely worth a try too, as I’ve known it to be effective for other dogs. I live in an area where the mineral content is really high in the water, and in a very old building on top of that. For whatever reason, she can’t handle the tap water, and would get crystals in her urine, UTIs, and increased incontinence with tap water, so she gets filtered or distilled water only. Finally, she takes Meloxicam, which was sort of the key in resolving the last bit of it because it’s an anti-inflammatory. For her, it seems to take a perfect balance of all of those things being in place - if one of them is not there, the accidents start up again. And while they are about 80% controlled with this routine, she still has days where they will happen again, usually because of scenarios like she has had a lot of anxiety for two days, and on the third day when she relaxes it seems the anxiety has made her overtired and she really relaxes and can’t hold her urine in her sleep.
It’s kind of a nightmare, particularly because of her size, and I have completely accepted some things - I steam clean and shampoo the rugs and couch regularly, but I intend to replace all of them when she goes, because they are definitely exposed to urine far more often than I would like. I have spent a small fortune over the years on waterproof beds, only to discover that waterproof does not mean Great Dane or frequent washing waterproof. I think I have finally found a great solution to the bedding issue (it was tested for the first time last night so we’ll see when the laundry gets started for the day :() - I bought a waterproof crib/toddler mattress on Amazon for $55, an egg crate mattress cover to go on top of it (because the toddler mattresses are a little firm for her liking, I assume because of SIDS), a waterproof mattress cover to go on top of that, and then crib sheets and a blanket, which should be easy to wash and replace. So far she loves the bed and it seems to be much more effective than the waterproof fabrics I had tried before. I also keep dry shampoo on hand for her, because although I try to put down towels and such on the days when she is having accidents, if they are bad it is impossible to keep her bed dry, and she will sleep through them, and I worry about the urine irritating her skin. Good luck, it does suck but there are some options out there!
