Cats are fussy creatures so you may want more than one cat bed for them to choose from.  But unlike dog beds they can easily blend in with your furniture looking more like a cushion than a pet bed.  

Choose one that is warm and that will enable your cat to feel secure.  They often prefer to curl up somewhere dark so look at the enclosed nest-like beds for your quieter cats.

Others may prefer an open cushion type of bed perched up high so they can keep an eye on what is going on!