try "listening" to your pets -- intuitively tune in to what may be "troubling them"
just as we may be grumpy because we have the flu (and haven't slept) or our hip or leg or something else hurts us
(also why we may not sleep well)
so, too, may your pets have a similar "issue"
many times short-term changes in pet behavior have a physical "root cause" (that you cannot easily see)
using your intuition to communicate with them will help each of you
understand . . . and heal