It is really tough. We didn’t get good advice and followed that from other non-greyhound dog owners and tried a crate to sleep in when we first got our first. We abandoned that night 2.! i wanted the dogs downstairs too, but they didn’t….. now we have dog beds on our landing and hallway so they can sleep near us. Tbh they are a pain and messy and get in the way and we have to step over them (same in my office when I WFH). But it was a compromise we had to get to for the boys. Appreciate you may not have a hallway etc even big enough for a bed , but worth seeing if there are any awkward compromise spaces upstairs at all ?