Get two though! That way if you can't let them run around the can still play with each other.
Last year Napoleon got really sick and lost a lot of weight. When he was feeling better we let him play with snowflake again and she would do things, like try and reach up to grab things, and Napoleon would try to do it. Today he's always getting into things and weighs a heck of a lot more. When he was really sick he weighed around 1 pound, now he's at least 3 1/2 pounds. He's a big boy!
But they are so cute and smart. I really love those little guys