Daisy is a 2 1/2 year old Rhodesian Ridgeback mix and has started urinating in her bed during the night. It's not every night, just occasionally. It's the same sleeping pad (and in same location) she's had since she was little. Any suggestions

Have you try walking your dog to help her pee before both of you turn in?

Is she drinking a lot of water before her sleep?

Have you gone to see a vet to identify the problems, it may be health related and not so much behavior related.