Instead of an crate, try an ex-pen or x-pen. (I don't know what it would be) You can get one with wires but I don't know if yours are climbers so you can get a fabric one which I would think that would be more comfortable. i would get one of these
New Pink Pet Tent Exercise Pen Playpen Dog Play Cat L - eBay (item 360299418079 end time Sep-17-10 08:42:34 PDT)
Hope you find something!