My cat meows as soon as he can't see me – is this normal? What should I do?

Hi there, If I’ve understood correctly, you’ve only had this cat for 24 hours. He’s feeling lost in this new and unfamiliar territory; cats are very territorial animals. On top of that, he’s having to deal with humans he doesn't know and has been separated from the cats and people he was familiar with and saw every day. This is extremely stressful for most cats. His meows are cries of distress. He needs time to get used to his new home and his new human companions. Never force any contact; reassure him as much as possible with your voice. Only patience and a gentle approach will help him acclimatise. As for trying to force a cat to sleep at the same time as you, it’s simply impossible. Cats are naturally active in the evening and during parts of the night—it’s just their instinct. Make sure he has toys available at all times and leave dry food out for him 24/7. Strict mealtimes can cause 'food stress', which is completely unnecessary and something this little lad really doesn't need right now. Well done for adopting an adult FIV-positive cat; he’ll return your affection a hundredfold if you can just be patient and gentle with him.