Book titled "Let's Sleep: The First Year" by Jazz Kostov, featuring a mother holding a baby in a bright room near a door, with a rocking chair in the foreground.

Feel confident to navigate your baby’s sleep from birth to one.

The exact guide THOUSANDS of parents are using to overcome sleep deprivation, navigate Sleep regressions, establish routines and feel confident in a matter of weeks.

I'M READY TO GET SLEEP NOW

 what our readers are saying

  • ★★★★★

    "This book is a revelation. Jazz does not ’tell’ you what to do, but helps you to find the techniques that will suit your family best.  I will be recommending this book for every one of my patients (and the new grandparents!). I wish I had this resource when I had my own children!"

    Dr Amber Moore, Obstetrician 

  • ★★★★★

    "Sleep in the first year of life can feel like a mystery—just when you think you have it figured out, everything changes again. Whether you’re seeking reassurance, practical strategies, or simply a moment of clarity in the fog of exhaustion, this book is here to support you—every step of the way."

    Dr Lexi Frydenberg, Paediatrician 

  • ★★★★★

    "Jazz is an absolute expert when it comes to baby sleep. She’s supported my family to navigate baby sleep twice now and her new book includes all the knowledge, routines and advice a parent could possibly need. It also looks incredible - making it a perfect gift for new or expecting parents."

    Caitlin Munyard Mum of 2

  • ★★★★★

    "I have been reading the Let’s Sleep book and it’s every bit as practical and reassuring as the consult, basically like having a sleep coach in your pocket. If you’re feeling exhausted, unsure, or just need someone to tell you what’s normal and what’s not — this is your sign. Get the support. Read the book. Book a call. Jazz is amazing!"

    Lauren Treweek Mum of 3, Co Host of Ready Or Not Pod

Book titled 'Let's Sleep: The First Year' by Jazz Kostov, showing a woman holding a baby near a window in a bright, minimal bedroom.

Using a flexible, evidence-based approach that works with your family's unique needs, not against them, like other one size fits all methods.

Written by an experienced Midwife, Nurse, Sleep Consultant and Mum of 2. After speaking with 1000’s of parents over the years about struggles with sleep deprivation and the often anxiety inducing nature of navigating baby sleep - I created the resource I knew parents needed. 

A baby sleeping in a cushioned baby rocker on a patterned rug in a living room.
A hardcover book titled "Let's Sleep: The First Year" by Jazz Kostov, placed on a solid blue surface. The cover features a woman holding a baby near a large window with sheer curtains.
A family of four walking in a garden with lush greenery and blooming flowers, overcast cloudy sky in the background.

Have you been dealing with:

  • Sleep deprivation and exhaustion that coffee won’t fix?

  • Confusing wake windows and unpredictable naps?

  • Constant overtiredness and short sleep cycles?

  • Catnapping and early morning wakings?

  • Bedtime battles and endless settling struggles?

  • Anxiety and overwhelm about your baby's sleep?

  • Sleep regressions that throw everything off track?

  • Feeling lost and unsure about what to do next?

  • No routine or predictability in your day?

  • Guilt and confusion from conflicting advice?

Are you ready to feel rested & confident but not sure where to start?

That's exactly why you need 'Let's Sleep: The First Year'. An evidence-based, midwife approved guide, without overwhelming information, confusing advice or judgment.

Open book titled "Let's sleep, The First Year" by Jazz Kostov, featuring a photograph of a woman holding a baby in front of a window, with a small white chair in a bright, cozy nursery.

Let’s Sleep The First Year is for you if you…

  • You are expecting a baby soon or have a baby under 12 months of age

  • You’re looking for the perfect gift to give to expecting parents

  • Want some judgement free guidance on the how, what and when of baby sleep

  • Would love to know how to get plenty of sleep in the first year of your baby’s life

I NEED THIS! I'M IN JAZZ
A newborn baby lying in a white and wooden bassinet with yellow and white checkered bedding near a window with peach curtains.

What’s in the book?

Let’s Sleep The First Year

  • How teething and illness can impact sleep (and what to do about it)

  • Whether solids impact sleep

  • Common sleep challenges like catnapping and early waking and how to overcome them

  • How to know when your baby needs to drop a nap

  • The four month sleep regression (and why it’s nothing to fear!)

  • All about sleep associations

  • Twins, triplets and navigating sleep with multiples

  • Basics of breastfeeding and bottle feeding (from an IBCLC)

  • How to settle your newborn

  • Why newborns can cry (lots) in the first few months and how to calm them

  • How to get your partner (or others) involved in settling

  • How to get your partner (or others) involved in settling

  • Safe sleeping

  • The importance of a wind down routine and how to establish one

  • How to prepare your baby’s sleep space

  • What an awake window is

  • When things don’t go to plan with your baby’s sleep

  • How to fill your own cup in parenthood

  • Perinatal mental health (reviewed by a Psychologist)

  • Balancing your nervous system as a parent

  • How to handle unsolicited advice about your baby’s sleep

  • Month by month routines (with different options!)

  • Endorsed by OBGYN’s & Pediatricians

I'M READY FOR 2 HOUR NAPS!
Row of plush stuffed animals, including a giraffe, dog, lion, zebra, and elephants, placed on a white crib railing in a nursery with three framed pictures of construction, aviation, and trucks hanging above.
Cover of a book titled "Let's Sleep: The First Year" by Jazz Kostov, featuring a woman holding a baby by a window, with a rocking chair nearby.

A gift they’ll actually LOVE!

Rather than another rattle or baby blanket, gift them something that will actually make a difference in their parenting journey (getting amazing sleep!). 

Let’s Sleep: The First Year makes such a beautiful gift for parents and caregivers with little ones from birth to one. Jam packed with practical advice and tips on baby sleep from a Midwife, Nurse, Sleep Consultant and Mum of 2. 

YES, THIS IS THE PERFECT GIFT!

Meet the author & contributors

Hi, I’m Jazz Kostov

letssleep.com.au @lets__sleep

A woman with short blonde hair and large floral earrings, smiling, sitting outdoors on a wooden deck with green grass and trees in the background, wearing a green cardigan with white floral pattern and black pants.

Get to know me

I’m the proud founder of Let’s Sleep. 

As a registered nurse, midwife, certified sleep consultant and previously a maternal and child health nurse I've always been dedicated to supporting families in their parenting journey - right from pre conception and pregnancy to postpartum and beyond.      

I’m a Mum to two incredible girls Hazel and Adeline and have an amazing husband, Alex. 

Let’s Sleep was created because I wanted to avoid sleep deprivation in parenthood and the inevitable ripple effects this has on our physical and mental health, relationships and enjoyment of parenting (and help as many parents in the process too). 

In 2025, I authored and self-published Let’s Sleep The First Year, a book on baby sleep. I can’t wait to see the impact this has on families far and wide. 

  • A woman with blonde hair holds a newborn baby, sitting on a cream-colored chair with green curtains in the background.

    Joelleen Winduss Paye

    Joelleen is an IBCLC holistic lactation consultant, midwife and naturopath. She has written the breast and bottle feeding section within the book. 

    www.jwp.care

    IG @jwp.ibclc

  • A woman kneeling next to a wooden highchair with a doll seated inside. The woman is smiling, wearing a blue and white striped shirt and white pants. The doll is dressed in a white shirt and gray shorts, and has a neutral facial expression.

    Eliza Leslie

    Eliza is a paramedic and first aid educator. She has shared tips for solids safety within the book. 

    www.babysafebasics.com.au

    IG @babysafebasics

  • Woman in white shirt and denim shorts eating cereal from a bowl.

    Thea Doyle

    Thea is a nutritionist and recipe developer. She has co written chapter 10 on solids and sleep within the book.

  • A smiling young woman with blonde wavy hair wearing a navy t-shirt standing outdoors among tall grasses and green trees.

    Louisa Mason

    Louisa is a psychologist specialising in perinatal mental health and neurodivergence. She has reviewed chapter 2 within the book which focuses on why sleep matters and perinatal mental health. 

    www.wattlepsychology.com

    IG @wattlepsychology 

 My mission is to empower you with the tools and intuition you need to make the best decisions for your family when it comes to sleep. Remember that there are no “bad habits” when it comes to baby sleep. There are simply habits that either work or don’t work for you and your family.

Woman sitting on a white couch, holding a newborn baby, smiling, in a room with a large framed coastal landscape photograph on the wall.
Featured
Shipping and handling

Let’s Sleep is a small, family owned and operated business. 

Currently, we manage all orders and shipping internally (meaning a member of the team is physically wrapping up and posting your order to you). 

We aim to ship orders within 2 business days.

As soon as your order is shipped, you will receive a confirmation email with a tracking code so that you can easily track your order.

Australia and New Zealand 

We use Australia Post to deliver all orders within AU, NZ and internationally.

Shipping within Australia is a flat rate of $9.95AU (for 1 book) for standard post and will be delivered within approx 2-3 business days. For each additional book there is a charge of $4.00AU for shipping.

*All our books are shipped from Melbourne, Australia. Please visit the Australia Post website to see shipping times to your area.

International

For international orders, we currently use Australia Post and your delivery cost and delivery time frame will be dependent on your location. You’ll be able to select your country at time time of checkout and see the price for shipping. We endeavour to keep these shipping costs as low as possible.

All prices listed are in AUD

Additional info

Orders shipped internationally may incur additional fees & duties. The responsibility for any custom duties, foreign taxes or other fees which may be imposed is with the customer only.

Should the customer refuse to pay applicable duties & taxes applied by customs, the responsibility lies with the customer to arrange for the order to be returned in order to receive a refund.

If the customer refuses to accept the delivery from Australia Post and Let’s Sleep is charged for return of the parcel, the return shipping amount will be deducted from the customer's refund.

Customers are responsible for collecting parcels from your post-office if an attempted-delivery has been made. We are not responsible for incorrect addresses entered and there will be a redelivery postage charge if the address was incorrect or item uncollected (please double-check your address at checkout). 

Production and transparency

You may notice the book is priced higher than those typically found at kmart or amazon - here’s why: 

  1. I chose to self-publish instead of working with a large publishing house (they can often get cheaper deals when creating books). By self-publishing, I maintain full control over the content and quality of this book, ensuring it aligns perfectly with the vision and values here at Let’s Sleep.

  2. The book is printed on demand in small batches. When a batch sells out, I will open preorders for the next round of books. This might mean a short wait if you preorder (which will always be made clear).

  3. At almost every stage of this project, I've been so lucky to partner with small businesses to support their incredible work. This includes photographers like Molly Heath, Megan Dwyer, Elyse Lagos, one of my lifelong friends Fenja as well as Stephanie Don from St. Clement Creative, whose incredible graphic design skills brought this book to life.

We truly appreciate your investment in this book. Please don’t hesitate to reach out if you need any further information!