My wife prefers our new puppy to sleep on the bed.I think better he has a dog bed on the floor.We already share with an old Shitzu. I'd like to buy two beds in the hope of getting more foot room with the Shitzu in his own bed on the floor but I'm not confident this will happen.We already have two beds downstairs. We're not interested in crates.Should I just give in as per usual she payed for the dog.Im ok with training and distance walking but am generally nervous about our new arrival introducing him to our occasionally grumpy old shitzu.Also what food is best to start we're hearing different opinions.Any advice please.