I sure understand how you feel, but I too believe Buddy will be fine. He has food and water, but will of course miss your company. Just make sure that he can't get in trouble - if you have blinds with strings hanging down, put them up high! Oh, and no little balls of yarn laying around.

What I have made a habit of doing, is to put an extra bowl of water in the kitchen sink during night, just in case...

I hope you'll have a relaxed stay with your mom and your dad will be home from hospital soon, and be okay!