Just a quick update. His Da-Bird toy arrived in the post this morning, and he was on it even before I got it out of the bag. Half an hour of playing later he's knackered, and I can hear him snoring happily from under the sofa. He's also now found a couple of other places to sit, namely the bedroom window cills, so he can see out. He seems much brighter now, although still very clingy, but that's only to be expected. I think the comment about finding somewhere small and safe to sleep is right, but at least he doesn't spend all his time under there now. In the evenings he curls up on the sofa with one of us - last night he spent 3 hours asleep on my lap on his back like a baby!

He is a domestic shorthair, but he is big. He has always been a large cat, but has put on a fair bit of weight whilst in kennels. They weighed him before he left, and he was 8.9 kg, which is apparently almost twice what he should be. That's quite a weight to find laying on your chest in the morning!!