JoJo is having a summer sleepover at Gran Gran's house and has brought everything she needs from home, including her favourite bedtime storybook. But JoJo is confused when Gran Gran suggests it might be bed-time, even though the sun is still shining in the sky! JoJo wanted to see the twinkly sleepover stars before she slept, just like the ones on the cover of her storybook. Gran Gran resolves to use fairy lights to create their own night time starry sky, and JoJo learns that the sun stays in the sky longer during summer.