bed wetting

Ok so i have a 1 year old Chinese Crested named Sookie who sleeps on my bed next to my chihuahua. They have a dog bed on my bed ... if that makes sense :p. Yesterday i stripped our bed and washed everything as i usually do every 1 or 2 weeks. later that night when everything was clean and dry...

I have an approx 2.5 year-old, spayed, female, basset mix rescued 1.5 years ago. I've noticed that she will quite often leave a wet spot when napping soundly (or perhaps when waking) on her bed or on her blanket on the couch beside me. She has had a wet bed overnight, but the problem seems to...