Take me straight to the Body Measurements
Who hasn't gone mental trying to figure out what size to buy for their kids? We probably would have been able to fly to the moon and back with the time we have spent trying to understand measurement. We wish we had a magic wand to tell you exactly what the right size is, but until we figure that one out, we've put together this handy guide and when in doubt you can always contact us.
Our clothing accommodates a range of measurements within each age group, ensuring comfortable wear as your child grows. For maximum longevity, we suggest looking at the height of your child and going for the size which will give them some extra room to grow. For example, if your child is close to the maximum height for their size, consider going up. You didn’t hear this from us, but rumour has it that Adeline and Anaïs (both above 164cm in height) happily snuggle up at night in the size 13Y pyjamas!
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Morning Marvels
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You child’s size
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3Y: 86 - 98cm
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80 - 90cm → 3Y
90+ cm → size up to 5Y
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5Y: 104 - 110cm
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104 - 108cm → 5Y
110+ cm → size up to 7Y
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7Y: 116 - 122cm
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116 - 120cm → 7Y
120+ cm → size up to 9Y
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9Y: 128 - 134cm
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128 - 132cm → 9Y
132+ cm → size up to 11Y
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11Y: 140 - 146cm
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140 - 144cm → 11Y
144+ cm → size up to 13Y
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13Y: 152 - 158cm
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13Y
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For 3Y long PJs : If your child’s head circumference is above 51cm/ 20”, and they need a wider head opening in order to be comfortable, then you should size up. However, if your child is not bothered by the collar being slightly tighter when dressing, you can fit a 52.5cm head just fine. Even our founder’s extra small head of 54cm (though no small brain!) was able to fit through it.
| Body measurement in cm |
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3 years |
5 years |
7 years |
9 years |
11 years |
13 years |
| Age (year) |
3Y |
5Y |
7Y |
9Y |
11Y |
13Y |
| Height |
86/98 |
104/110 |
116/122 |
128/134 |
140/146 |
152/158 |
| Chest |
55 |
59 |
63 |
67 |
72 |
77 |
| Waist |
51 |
54 |
57 |
59 |
61 |
66 |
| Hips |
59 |
63 |
67 |
71 |
75 |
81 |
| Body measurement in inches |
|
3 years |
5 years |
7 years |
9 years |
11 years |
13 years |
| Age (year) |
3Y |
5Y |
7Y |
9Y |
11Y |
13Y |
| Height |
34/39 |
41/43.5 |
46/48.5 |
50.5/53 |
55.5/57.5 |
60/62.5 |
| Chest |
21.65 |
23.22 |
24.8 |
26.38 |
28.35 |
30.31 |
| Waist |
20.08 |
21.26 |
22.44 |
23.23 |
24.01 |
25.99 |
| Hips |
23.23 |
24.8 |
26.38 |
27.95 |
29.52 |
31.89 |
For 3Y long PJs : If your child’s head circumference is above 51cm/ 20”, and they need a wider head opening in order to be comfortable, then you should size up. However, if your child is not bothered by the collar being slightly tighter when dressing, you can fit a 52.5cm head just fine. Even our founder’s extra small head of 54cm (though no small brain!) was able to fit through it.
Growth-Friendly Features
Every piece features adaptable design elements like rollable sleeves and adjustable hems, letting you customise the fit as needed. This smart design approach extends the garment's wearability through growth spurts.
Fabric Care & Quality
The fabric we use combines exceptional softness with natural moisture-wicking properties, keeping your child comfortable throughout their busy day.
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Machine wash at 30°C (86°F)
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Natural shrinkage may occur due to the nature of our fabrics
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Garments maintain their softness through repeated washing
We’ve put together a handy care guide
Need Help? For personalised sizing assistance, our team is ready to help help@morning-marvels.com
Product Details
