This is what I bought my two new little girls, as they both seem to fit in one igloo, I thought I would try this out, and they both fit in this quite comfortably! I bought this mainly to be used when they are housed outside, as well as their igloo, but also use it inside too. Bought this from Pets At Home and they still stock these, for about £10 -15 not too sure I forgot :O I have put this one through the washing machine and has not lost it's shape, it's lovely and warm and cozy for them both!