My Greyhound, Hobbs, who I've had for 3 years, has stopped sleeping through the night. He's also exhibiting behavior (only at night) where he jumps up suddenly, like a shot, from where he's laying - and then he can't settle down. He'll lay down for a couple minutes but then shoot back up again. And then either wander around or come over to me in bed. I've taken to shutting my bedroom door to get sleep (after he wanders into the connected living room).
At first I thought maybe it was because I hadn't been able to walk him for over a week due to the recent winter weather. But we've since resumed our long, daily walks and the behavior persists. Being he's 8 years old, I also thought maybe his joints were stiff. (He's showing the initial signs of aging.) So I started him on fish oil. But to no avail.
I'm not sure it's even physical, though, because this behavior only happens at night. He sleeps fine throughout the day and is moving around normally. No signs of anything being off. Also, it's only when I go to bed that this starts. And when I get up in the morning, he tends to settle and fall asleep.
While this behavior has been consistent recently, he did do this for the first time a few months ago. But it only happened a handful of times. I mentioned it to my vet shortly afterward, and (after asking some questions to rule out worms, etc.) she said it sounded as if he was hearing something I couldn't. I live in apartment complex, and new neighbors had recently moved in right below me. It's a family with (loud) kids, and the kids' bedroom is directly below mine (which is where Hobbs usually sleeps). So at the time, I chocked it up to him hearing something that I didn't. But then when winter came, in recent weeks, it's turned into almost every night - all night long.
Any thoughts or ideas would be appreciated!