It’s difficult to say what your solosis may be doing, anonymous. I can assure you that there isn’t a general secret solosis society, but it’s entirely possible that one has formed in your community anyway, especially given how social solosis are. Alternatively, it’s also possible that your solosis is simply training itself at night or playing. It might even be a nutritional deficiency or an overly worn bed, if your solosis is trying to sleep at night. Ultimately, the only way to know for certain what it’s doing is by keeping an eye on it. Solosis can’t teleport, so following it should be rather simple.
Once you figure out what it’s doing, then you can take steps to correct this behavior or help solosis so it doesn’t end up exhausted every morning. But you can’t really act until you know for certain what the core issue actually is.
Best of luck!