OnlyOnAOL: The pet mattress your dog and cat need right now

By: Donna Freydkin

Casper, the mattress, has been spotted on the Instagram feeds of celebrities like Kylie Jenner, Kat Graham, Emmy Rossum, and Ashley Greene. (Watch our interview with Greene above).

So it stands to reason that their pampered pooches now get a taste of sleep heaven.

That's thanks to the launch of the Casper dog mattress. It's sleek. It's comfortable. And it comes in three colors and sizes, and retails for $125-$225.

Here's a look back at stars and their pets.