We’ve just finished reading The Best Sleepover in the World by Jacqueline Wilson together at bedtime — one page each, taking turns — and it has officially earned a very confident 10/10 from my 9-year-old daughter.

And honestly? I can see why.

If you’re looking for a Jacqueline Wilson book for 8–10 year olds that covers friendship, kindness and disability in a gentle, relatable way, this one is well worth considering.

What Is The Best Sleepover in the World About?

When I asked my daughter to describe it in one sentence, she said:

“It’s about one mean girl having a really good sleepover and another girl tells her sister and they decide to have the best sleepover.”

It’s a story about Daisy, friendship dramas, sibling relationships and the determination to create the ultimate sleepover — even when things don’t go quite to plan.

On the surface, it’s a fun sleepover story. But underneath, it explores some much bigger themes.

Our Favourite Character (Uncle Gary Steals the Show!)

My daughter’s favourite character was Uncle Gary — even though he isn’t in it very much.

When he dresses up as a florist called Glorietta, she thought it was absolutely hilarious. The way “Glorietta” talked, the outfit, the confidence — it had her properly giggling at bedtime.

As an adult reader, I’ll admit that storyline surprised me slightly when it appeared, but my daughter loved it. And that’s what matters most.

The Disability Representation – A Gentle Conversation Starter

One of the most meaningful parts of this book is Lily, who cannot communicate using words.

My daughter had guessed from the cover that Lily used a wheelchair, but she hadn’t really come across children who don’t communicate verbally before. It genuinely surprised her.

What I found fascinating was how open and curious she was. We ended up chatting about:

• Different types of disabilities
• How families adapt (she was especially interested in the Motability car)
• How you can still play and communicate in different ways

Afterwards, she said:

“Just because you have disabilities and they might not be able to communicate with words you can still find ways to play with them and talk to them.”

For a bedtime read, that’s pretty powerful.

If you’re looking for children’s books about disability for primary school age children, this is handled in a subtle, age-appropriate way that opens up discussion naturally.

Friendship Drama & “Mean Girl” Moments

As a mum of a 9-year-old navigating real-life friendship dynamics, I actually really value books like this.

Chloe’s unkind behaviour gave us an opportunity to relate parts of the story to things happening within my daughter’s own friendship circle. I loved that Daisy and her best friend stood their ground and stuck together — such an important message for girls at this age.

It’s relatable without being heavy.

Is The Best Sleepover in the World Suitable for 9-Year-Olds?

In our experience — yes.

My daughter described it as “medium” to read. We alternated pages at bedtime. There were a few trickier words she asked me about, but overall it felt very manageable.

She suggested ages 4–12 (optimistic!), but I would say 6–12 years, particularly:

• UK primary school children
• Confident independent readers in KS2
• Children navigating friendship dynamics

It’s a good length — long enough to get immersed in, but not overwhelming.

What Is the Main Message?

When I asked my daughter what the big message of the book was, she said:

“Always be kind and just because you’ve got a disability doesn’t mean you can’t join in.”

That sums it up beautifully.

Would We Recommend It?

Absolutely.

From my daughter:

• “10/10. I loved this book.”
• She would definitely recommend it to a friend.
• She’d happily read another Jacqueline Wilson book.

From me as a parent:
It’s a light, engaging read that quietly covers big topics like inclusion, empathy and friendship — without ever feeling preachy.

Books like this are relatable, immersive and just the right length for this age group. They allow children to get lost in the story while gently building understanding and kindness.

And any book that sparks meaningful conversations at bedtime? That’s a win in my book.

Parent Questions Answered 

Here are some of the common questions parents might have before choosing this book:

Is The Best Sleepover in the World appropriate for 9-year-olds?

Yes. We read it together at bedtime (one page each), and it felt very manageable. There are a few trickier words, but nothing overwhelming for KS2 readers.

Does the book include themes of disability?

Yes — one of the key characters, Lily, cannot communicate verbally. The representation is handled sensitively and naturally, making it a great conversation starter about inclusion.

Is there anything parents should be aware of?

There is a character (Uncle Gary) who performs in a nightclub dressed as a woman. It’s portrayed lightly and humourously. My daughter found it hilarious and didn’t find it confusing or uncomfortable at all — but it did surprise me slightly as an adult reader.

Is it just a fun sleepover story?

On the surface, yes — but underneath it explores friendship, kindness, loyalty, disability and inclusion in a subtle, age-appropriate way.