Sleepovers is a book by Jacqueline Wilson published in 2001. The story is about Daisy, who hangs out with her friends Amy, Bella, Chloe and Emily: 'The Alphabet Club', which was formed by Daisy herself. While she goes to their birthday sleepovers, she's worried that her disabled sister Lily, will spoil her sleepover.
The main character, Daisy, has just moved to a new school and has made friends with Amy, Bella, Chloe and Emily. They have a special secret Alphabet Club, due to their names beginning with the first five letters of the alphabet (Amy, Bella, Chloe, Daisy and Emily).
When Amy has a sleepover for her eighth birthday, the others decide they will all do the same, but Daisy is worried about how her friends will react to her big sister Lily, who has had special needs since she was born. Daisy is invited to Amy, Bella and Emily's sleepovers with no hesitation, but Chloe takes more persuading (she deliberately didn't invite Daisy, but covered this up by saying 'her mum said she could only have three people there'), and the others refused to go unless Daisy could too, so Chloe gave her an invite.
At Daisy's party, Amy, Bella and Emily all like Lily, but Lily got scared after seeing a toy teddy bear that was part of a present from Emily, and has to be put to bed. Chloe (who deliberately turned up late) took the mickey out of Lily for having a rather large chair and also warned Daisy she had better be more careful with her big sister. In the middle of the night Chloe needed to go to the toilet so she woke up Daisy and then hand in hand they both went inside upstairs. When they got to the top of the stairs Chloe got a bit scared because all she could hear was 'UR UR UR UR UR' and she did not know that it was Lily (Chloe associated 'UR UR UR UR UR' with a white witchy ghost movie watched earlier that day); Chloe wets herself with fear.
The next morning, it is revelaed that Chloe was driven home that night. Amy, Bella, Daisy and Emily laugh about Chloe wetting herself. They all play together, with Lily, feeding her sweets and styling her hair and playing charades, until their parents come to collect them. Emily reveals that she will finally stand up to Chloe, and asks Daisy to be her new best friend.
The next day, at school, Chloe is seen mocking Daisy, her sleepover and her sister, Lily, to a group of other girls. Amy, Bella, Daisy and Emily all stand up to Chloe, and Chloe breaks friends with all of them, and storms off with the other group of girls.
Daisy says that now she and Emily are best friends, and Amy and Bella are best friends, and the group go around together now, and its all thanks to Lily!