Little Leo wore his silver pajamas and his favorite starry helmet. Tonight was a special night, for Leo was a bedtime astronaut. He climbed into his cozy rocket ship, tucked under a blanket made of velvet clouds, and prepared for his journey across the galaxy. As the engines hummed a soft, rhythmic lullaby, Leo began to float through the dark, velvety expanse of space. First, he flew past Mercury, which was fast asleep in the warmth of the sun. 'Goodnight, Mercury,' whispered Leo. The planet sparkled like a tiny diamond. Next, he drifted toward Venus, glowing softly in the quiet night. He waved a small, sleepy hand and murmured, 'Goodnight, Venus.' Each planet he visited was like a friend tucked into their own soft bed. He floated past the red dust of Mars and circled the giant, ringed beauty of Saturn, finding it peaceful and still. Further out, the icy giants Neptune and Uranus looked like sleepy, blue marbles waiting for the morning light. As Leo traveled, he whispered a gentle 'goodnight' to every flickering star he passed. The stars twinkled back, slow and steady, like sleepy eyes blinking shut. Eventually, Leo felt his own eyelids growing heavy. His rocket ship drifted back toward the soft, round glow of Earth, which looked like a warm hug waiting for him from afar. He landed softly in his own bedroom, where his plush teddy bear was patiently waiting on the pillow. Climbing out of his ship, Leo felt safe, loved, and ready for dreams. He realized that even the biggest stars need rest, and there is magic in the quiet of the night. As the moon shone through his window, Leo whispered one final goodnight to the universe. Within moments, he was fast asleep, floating through gentle, star-filled dreams, knowing that the whole world was resting right alongside him.