Yes! My dogs have always slept on the bed, and a couple have slept IN the bed. My current pooch, Dexter, used to always sleep on, an occasionally, in the bed, but he doesn't anymore. This is for two reasons. He's a big dog, he's getting on in years (he turned 15 last month), and has developed arthritis in his joints. He's finding it increasingly difficult to jump up on my bed these days, as it's quite a tall bed. I did buy him some steps to help him get up but he's scared of them and won't even consider using them! (Despite his size, he's a complete wussy!). The other reason is that in the last few months, his age is catching up with him in other ways, and he's becoming incontinent in his sleep (yes, he's seen the vet, it's just an age thing). I've tried him with dog wraps (male dog nappies), but he doesn't like them and manages to pull them off. His own bed is waterproof with a washable cover, so if he has an accident in his sleep whilst on there, it's easily cleaned up. Not the case should it happen in my bed. So I took the difficult decision to not allow him on the bed anymore. He's not impressed with me, but it is what it is. If he'd keep his wrap on, I may relent, but he won't. It's strange having the whole bed to myself, I'm so used to waking up right on the edge, after Dexy had spent the night claiming the rest of the bed, that waking up in roughly the same spot that I went to sleep in is somewhat disconcerting.... 
