Echidna says that because she thinks she is special.

There is no specific name given to a female echidna. It is just a female echidna.

when do Echidna sleep

A female echidna does not have any particular name. It is just a female echidna.

There are only two species of echidnas: the short-beaked echidna (Tachyglossus aculeatus) of Australia, and the long-beaked echidna (Zaglosssus bruijni) of New Guinea. There are several sub-species of the long-beaked echidna: the Western long-beaked echidna, Sir David's long-beaked echidna and the Eastern long-beaked echidna.