This is what I have for Tia (in the small version - of course) -- I like it because she can see through the top. I keep in on the floor by my bed and if she gets worried in the middle of the night, I can look at her and she's okay because she can see me -- if she keeps crying after she has seen me I know she needs to go potty
http://www.drsfostersmith.com/produc...&N=2001+113496