Using the character from the provided image, create a cute sticker in the 3D Pixar/DreamWorks style. The character should be in cozy pajamas, looking sleepy, and waving a hand to say good night. The background should be a soft, dreamy night sky with a moon and stars. The sticker must include the Russian text 'Спокойной ночи и сладких снов' written in a nice, soft font. The final image should have a distinct white sticker border around the character.
