The present disclosure relates in general to a pet habitat. The present disclosure describes a universal sill mountable device for mounting to a sill and a window, where the structure of windows and window systems vary. In particular, the present disclosure relates to a sill mountable device that includes selectably positionable leg for universal mounting, where the leg is affixed based at least in part on the width of the sill, so that the platform maintains a substantially horizontal posture when the device is mounted to a window.
