Pick the wake time you could hold seven days a week — honestly, not aspirationally — and set tomorrow's alarm to it. That's all. The bedtime takes care of itself once the anchor is in; your only job tomorrow is up-and-into-light, even if the couch and thirty open-eyed minutes is the whole performance.
Skip the bedtime rule and anchor the wake-up instead — every day, weekends too. Sleep needs differ body to body; fix one end and the other finds itself.
If your pet may have eaten or touched something harmful, you can call and talk with a veterinary toxicology expert who helps you work out the risk and what to do next.