My 8 year old EB sleeps all day. He can go 12-14 hrs or maybe longer without having to go outside, he's just always been that way. I work from home so whenever he wants to go out, he lets me know. Sometimes, I have to force him to go outside because he prefers to sleep all day. But in the evening, we usually play with him a bunch to get him exercise. When we got our EB puppy a few months ago, now he's more interested in going out with the puppy. In any case, I think there are just some breeds that handle being left alone better than others. My Rottweilers used to be home all day when I used to work from the office and they were great. But when we got home, it was play time. I don't think you need to feel bad, your EB will be just fine.