Generate a high-resolution image of a cute, sleepy chibi animal (e.g., a fox, cat, or bear) lying peacefully on its side. It should be resting comfortably on a soft, pastel-colored miniature pillow. A gentle, content smile subtly graces its face, suggesting sweet dreams. Render this image in a vibrant kawaii sticker art style, characterized by crisp, bold outlines, a bright and cheerful color palette, and simplified, charming features. The illustration should feature a clean, white background, suitable for use as a digital sticker or decal. Focus on a close-up shot that highlights the animal's adorable expression and the intricate details of the sticker style.