I got Callie's single snoozer at Gwlittle.com but I got the big one for both Callie and Sammy as well as Sammy's single snoozer at
Dog Car Seat - Pet Car Seat - Lookout Pet Car Seat - Snoozer Pet Products I personally liked the second place better it had great customer service. Callie is crazy about her snoozer when I was letting her jump on her own, if the car door was open she would jump in the back seat then run over to her car seat and jump in and sit waiting to be buckled in.