365 Sleep Bag 2.0

Watch the video below to see how it works. For further info, scroll down further.

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Meet the 365 Sleep Bag 2.0

What is a Baby Sleeping Bag?

Baby sleeping bags are a safer alternative to traditional blankets. They reduce the hazards of overheating, suffocation, and excessive cold, some of the major risk factors of SIDS, Sudden Infant Death Syndrome.

The Problem

But the problems with existing baby sleeping bags are:

  • You would need to buy a handful of different weight (Tog) bags for every season and different ambient temperatures. So you're only getting few months use out of each sleep bag.
  • Most baby sleeping bags on the market are single sized, therefore they are quickly outgrown before being outworn.
  • Baby sleeping bags are often made of non organic fabrics such as regular cotton and bamboo, which are heavily reliant on toxic fertilizers, pesticides and other chemicals. A baby's skin is up to 5 times thinner than adult skin, and is extremely susceptible to absorbing toxins and more sensitive to chemicals used in non-organic fabrics.
  • Furthermore, some baby sleep bags are made of polyester and synthetic materials such as fleece. Even most baby sleeping bags advertised as being made of cotton use polyester filling/quilting. Polyester and fleece can trap heat and cause overheating as they do not breathe very well. This is particularly the case for babies as they cannot regulate their body temperature as well as older kids or adults. Overheating is a major risk factor for Sudden Infant Death Syndrome.

The Solution

With this in mind, we've created the 365 Sleep Bag 2.0; the only baby sleeping bag that can be configured to all seasonal variations, changes in ambient temperatures, and grows with your baby, thanks to its unique patent-pending design.

How it works:

The 365 Sleep Bag 2.0 is available in two different TOG ratings:

  • A cool Summer bag (0.5 Tog, recommended for 22°C and above)
  • and a mild Autumn/Spring bag (quilted 2.5 Tog, recommended for 18-22°C).

These bags can be used on their own, or combined (via our special zip system) to form:

  • A warm Winter bag (approx 3.0 Tog, recommended for below 18°C).

Giving you maximum usage of each bag, so your baby sleeps in complete comfort and safety 365 days a year!

The 365 Sleep Bag 2.0 is dual sized (e.g. Sizes 0-1, 2-3, 4-5) to accommodate your child's growing body. The Autumn/Spring bag comes with the X-TEND system which allows for the sleeves to be extended to the next size up, allowing a comfortable fit for your child over two sleep bag sizes.

Additionally, the 365 Sleep Bag 2.0 is made with certified organic cotton (No Polyester, No harmful chemicals and pesticides), and comes handy features such as removable sleeves, foldable hand mittens, and a travel vent.

- The Tog is a measure of warmth or "Thermal Resistance" of a product, the higher the tog rating, the warmer the baby sleeping bag.

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Safe and comfortable sleep 365 days a year

The 365 Sleep Bag 2.0 is a fully configurable baby sleeping bag that can be adjusted to all seasonal variations, ambient temperatures, and your baby's changing needs, eliminating the need for blankets and different weight (Tog) bags for every season. It keeps your baby sleeping comfortably all year round - from icy cold winters to baking hot summers, and those tricky seasons in between!

Easy adjust for overnight temperature drop

One of the biggest worries for parents is keeping their baby warm when temperatures drop overnight.

While combining the 365 Sleep Bag 2.0, the 0.5 Tog bag is added on the top/outside of the 2.5 Tog bag. So, during overnight temperature drops, you can simply add the 0.5 Tog bag on top, without ever having to unzip the 2.5 Tog bag your baby is already in, thereby not having to expose your baby to the cold.

X-TEND to next size up

The sleeves on the Autumn/Spring bag come with our patent-pending X-TEND system, so that the sleeves can be extended to next size up as your baby grows.

Removable sleeves

The sleeves are removable, which gives you an additional way to configure the sleep bag to the ambient temperature and regulate your child's body temperature. This feature also give you the flexibility of being able to wash the sleeves separately if they are soiled before the main sleep bag.

Foldable hand mittens

Comes with foldable hand mittens to keep your baby's hands nice and toasty throughout the night.

Made from the highest quality certified organic cotton, our hand mittens are completely safe and soft to chew on, suck on, and stroke their face with - this self soothing behaviour comforts them, and thus helps them sleep better.

And because the sleeves are detachable, you can easily zip them off and wash anytime.

Certified organic cotton

The ideal choice for all babies

A baby's skin is up to 5 times thinner than adult skin, and is extremely susceptible to absorbing toxins and more sensitive to chemicals used in non-organic clothing.

That's why the 365 Sleep Bag 2.0 is made with certified organic cotton, grown free from nasty chemicals and toxins, soft and gentle on your baby's delicate skin. An ideal choice for all babies, specially babies with Eczema and sensitive skin.

Certified organic cotton throughout

Made with high-quality certified organic cotton throughout; inside, outside and including the quilting. Fabric content as follows:

  • Inner and outer 100% certified organic cotton
  • Shoulders, sleeves, and sides 95% certified organic cotton 5% spandex
  • Quilting/Padding (2.5 Tog bags only) 100% certified organic cotton

Designed for optimum comfort

Warm, breathable raglan sleeves

The sleeves are made with breathable certified organic cotton fleece so that your child's arms stay nice and warm without the risk of overheating. The fabric is also super-soft, lightweight and has a bit of stretch, which, in conjunction with the raglan design (used widely in the design of sports, outdoor and performance wear) gives your child unrestricted natural movement of the arms and total comfort.

Designed to fit well

The 365 Sleep Bag 2.0 is designed to fit better to your child's body, whether your child's age falls at the lower end or the higher end of the garment size, thanks to our patent pending X-TEND system.

Hip friendly design

The 365 Sleep Bag 2.0 has a roomy, hip-friendly, bell-shape design, that allows your baby's legs to kick and move freely.

Soft and comfortable fabrics

Made with luxurious super-soft organic cotton fabrics to ensure your baby is always comfortable.

Extra convenience

Travel vent

Comes with a convenient travel vent for use in a stroller.

Easy nappy change

Downward zips make nappy change a breeze.


Australian safety standard approved.

The 365 Sleep Bag 2.0 conforms to the Australian safety standard AS/NZS 1249:2003

High quality YKK zippers

We use the highest quality zippers made by YKK- world leader in zipper manufacturing.

Downwards front zip design

Front zip sleeping bags remind parents to put baby on their back to sleep safely. Downward zips prevent baby from escaping out of the bag.

Fitted neck

Ensuring that baby’s head will not slip into the bag.

Zip guard under chin

To prevent rubbing of the Zip head on baby's skin.

Further info

Sizing guide

The 365 Sleep Bag 2.0 comes in the following dual sizes:

  • 0-1 (6-18 Months)
  • 2-3 (18-36 Months)
  • 4-5 (3-5 Years)

Below is the sizing guide.

Sleep bag size




Approx. recommended age

6-18 Months

18-36 Months

3-5 Years

Sleep bag length




Full sleeve (2.5 Tog sleep bag) length (From side of neck to wrist.)

At size 0: 31 cm
At size 1: 35 cm (extended)

At size 2: 40 cm
At size 3: 43.5 cm (extended)

At size 4: 46.5 cm
At size 5: 50 cm (extended)

Neck circumference

36 cm

38 cm

40 cm

Widest width at the legs

48 cm

50 cm

53 cm

- All measurement are approximate and are for guidance only as all babies are different.

Which size sleep bag should I get?

In order to get the correct size sleep bag, measure your child's height from base of neck to floor standing. Add 10cm to allow some room for leg movement. If your calculated length is close to or slightly bigger than the length of the sleep bag (found in the sizing guide table), you will need to get the next size sleep bag. For example, if your baby measured 71cm from base of neck to floor, then you add 10cm to allow for leg movement, total length would be 81cm. The length of a Sleep Bag size 0-1 is 85cm, your child would grow out of this very quickly. You would need to get the next size 2-3 sleep bag.

If you are going for a larger size, you'll need to measure your child's head circumference and ensure it is sufficiently larger than the neck circumference of the sleep bag (found in the sizing guide table) to avoid your child's head slipping under the sleep bag.

We do not recommend getting excessively larger size than what is suggested in the sizing guide table. Extra material from excessively larger size sleep bag can cause risk of suffocation by bunching up at the neck and mouth as well as discomfort and legs getting tangled in the extra material.

How should I dress my baby underneath the sleep bag?

The 365 Sleep Bag 2.0 is designed to be used instead of blankets and top sheets. The table below shows guidelines for the amount of clothing for your baby and the correct 365 Sleep Bag 2.0 configuration that should be used in different room temperatures.

Please remember, though, that babies are all different; additionally, other factors such as humidity in your region, whether there is heating in the house, and your baby's health (whether your baby has a cold or infection or another special need)  can determine how you should dress your baby.

Dress your baby to be comfortable, neither too hot nor too cold. Feel your baby's chest regularly to check his/her temperature. Don’t worry if baby’s hands, face, and feet feel cool - this is normal. If your baby is sweating or has a red face, remove some clothing and/or use a lower tog configuration. This may be necessary if your baby is unwell, in which case you should seek medical attention.

Nursery Temperature

Combined Winter Bag 3.0 Tog
14-18°C / 57-64°F

Autumn/Spring Bag 2.5 Tog
18-22°C / 64-71°F

Summer Bag 0.5 Tog
22°C + / 71°F+

26°C / 79°F



Short-sleeved Bodysuit

24°C / 75°F



Long-sleeved Bodysuit

22°C / 71°F


Short-sleeved Bodysuit

Short-sleeved Bodysuit

+ PJs or All-in-One

20°C / 68°F

Short-sleeved Bodysuit

Long-sleeved Bodysuit


18°C / 64°F


+ PJs or All-in-One

Short-sleeved Bodysuit

+ PJs or All-in-One


16°C / 61°F

Short-sleeved Bodysuit

+ PJs or All-in-One



14°C / 57°F

Long-sleeved Bodysuit

+ PJs or All-in-One



- This dressing guide is for general guidance only as all babies are different.
- A FREE room thermmeter with a dressing guide is included with your order.

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We accept Visa, MasterCard, PayPal, and Afterpay payments.

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Shipping cost and delivery timeframe

We offer $9.95 Flat-Rate shipping for all AU and NZ orders. Shipping rates for all other countries are weight base and calculated automatically.

Australian delivery generally takes 2-6 business days from date of despatch. New Zealand delivery takes around 5-10 working days, and all other countries around 7-14 working days. More info at https://sleepycompany.com/shipping-returns-warranty/

Returns and exchanges policy

If you are not 100% satisfied with your purchase for any reason, or if you would like to exchange for another size, print, or product, you have 100 days (from the date of delivery) to return it. Returns must be unworn, in the state you received them, and in the original packaging. More details at https://sleepycompany.com/shipping-returns-warranty/