I have to let out my garden flat and move in with good friends. My cat is a playful 12 years old and likes people in her own time. The new house also has a garden, and thankfully no other pets as she HATES every other cat and dog. I'm planning to move her in the last van and keep her food and litter tray in my bedroom the first evening. How long should I keep her inside so when I do let her out she won't bolt?