Should You Buy Your Daughter's Pajamas One Size Up or True to Size?
How to choose based on fabric type
What Should You Use as a Guide When Selecting Pajama Sizes?
What to Check When Looking at Size Charts
Even when brands use the same age label, actual measurements vary slightly. Rather than choosing based solely on age or height, comparing the detailed page's shoulder width, sleeve length, and total length measurements against your child's current body dimensions increases accuracy. For growing children especially, factoring in potential height changes within the next six months and building in extra room helps extend the time between purchases.
- Size based on height +1 size up: Provides growth allowance and freedom of movement during sleep
- Sleeve and hem length: Should just lightly cover fingertips and toes
- Neckline fit: Comfortable if one to two fingers can fit underneath
- Seasonal thickness: Consider sizing up for winter styles based on lining thickness
Do 100% Cotton and Modal Fabrics Affect Size Selection?
Different fabrics can create varying levels of comfort in the same labeled size. Pure cotton may shrink after washing, making it safer to choose slightly roomy sizing at initial purchase. Modal, on the other hand, has excellent elasticity and drape, so wearing the labeled size feels less restrictive. In practical terms, cotton works best when chosen generously, while modal fits well at true size.
| Factor | Pure Cotton | Modal |
|---|---|---|
| Shrinkage after washing | Yes | Minimal |
| Stretch | Low to moderate | High |
| Size recommendation | One size up | True to labeled size |
| Feel | Soft and airy | Smooth and silky |
Both fabrics are gentle on children's skin and widely used for pajamas, but if prioritizing sweat absorption and breathability, pure cotton is the better choice. If prioritizing stretch and smooth texture, modal is worth considering first. THE ERGO offers various options so you can compare both fabrics based on season and your child's body type.
Buying Oversized Isn't Always the Right Answer
Choosing sizes that are too large can actually reduce mobility and cause clothing to bunch up or get tangled during sleep. Keep growth allowance to approximately one size, and use your child's ability to move arms and legs freely when actually trying on the pajamas as your final deciding factor.
Frequently Asked Questions
How many sizes up should I buy for girls' pajamas?
Generally, selecting one size larger than the labeled size provides adequate allowance for both growth and movement during sleep.
Between pure cotton and modal, does one fabric run larger than the other?
The difference comes less from the fabric itself and more from the fact that pure cotton may shrink after washing, making it safer to build in extra room during initial purchase.
Should I use the same sizing guidelines for winter pajamas?
Winter pajamas have added thickness from lining or fleece backing, so choosing a half to full size larger than you normally would is recommended.