we've got something like this:

Radiator Hammock

Bella spends most her time in it, whereas Theo prefers our bed! In winter they both love it and Bella does get inside the material!

Got it off ebay. best purchase we've got!

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mummy to:
Kittes: Bella & Theo - 4 year old moggies
Doggy: Rupert - 2 1/2 year old Collie x
Chinchilla: Gypsy - Ebony