There were nine Popples in the original series, three at 13", three at 11" and three at 8".

Each one could turn sit inside the pocket on its back.

There were three Slumber Party Popples.

They wore night caps and when turned into their pocket they looked like they were tucked up in bed!

There were six Puffling Popples.

They didn't have names as far as I know, just went by their colour.

They looked completely different from all other Popples, like a round baby furball, and when turned into their pockets they looked like little bobble hats!

There were ten Pocket Popples, so called because they were small enough to fit in your pocket.

They had hard plastic face and moveable limbs, the rest was a jersey type fabric and fur.