After being on this board a while, I've gained a strong impression that rescue groups in the US and UK really differ from one another. In the UK, requirements and considerations are about as stringent as adopting a human child in many places.
There's also a stronger belief about being absent during the week makes a home less acceptable.
I"m not saying one system/attitude is more superior than the other, just different :)
Tim, Perhaps you could look into an older dog who is more likely to sleep and rest more than a puppy or younger dog :) I adopted an 8 year old Yorkie and she was happy as a clam to be treated like a cat :) :D
I got her through Posting made on my Vet's bulletin Board. But that seems to be more common to US where most people advertise a dog needing a home than surrendering it automatically to a shelter or breed club. I see it in the local paper all of the time because of moving/allergies etc....
hth,
good luck,
toodles