365 Sleep Bag 2.0 - Turtle Tale / 4-in-1

The 365 Sleep Bag 2.0 / 4-in-1 consist of two configurable bags:
- A cool Summer bag (0.5 Tog, recommended for 22°C and above)
- and a mild Autumn/Spring bag (quilted 2.5 Tog, for 18-22°C).
The two bags can be used separately or can be zipped up together to form a warm Winter bag (approx 3.0 Tog, recommended for below 18 degrees).

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• Scroll further down for sizing and dressing guide
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• Shipping info can be found here

Availability: In stock

Product Option Price Qty
4-in-1 / Sizes 2-3 (18-36 Months)
4-in-1 / Sizes 4-5 (3-5 Years)




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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.


More questions answered at our FAQ page

Fire hazard labelling as per AS/NZS 1249:2014