Blond Jovi & Ushanka love this well made cozy Small Cube with removable pads.

Small sized cubes measure 6.5" x 6.5". This will fit one to several rats. Made from cotton & lined with fleece & batting in the middle. Grommets in each corner, pear hooks are included for hanging.

Removable, absorbent pads available to reduce the amount of washing on the entire cube. All pieces are washable & dryer safe, & are made to coordinate with the fleece lining.
Standard cube has 2 openings, but can be customized by request.

<--wood chew inside - extra pads -->
Great choices of fabrics & custom orders accepted. Easy to hang & takes up less horizontal space than hammocks.
An additional hook can be attached INSIDE the cube to existing pear hook to hang a chewie so the rats will hopefully chew on that instead of these cool cubes.
Additional pads are very thick & soft. The rats sometimes crawl under these like blankets.
My custom order came quickly and had very nice workmanship.
Highly recommended.

http://www.jenscustomcrafts.com/ Many items for small pets such as chinchillas, sugar gliders, guinea pigs...