Designed To Fit Longer ✨
Zippy Pajamas Size Guide
Our signature bamboo fabric is naturally soft, stretchy, and designed for longer wear, helping your little one stay cozy through more growing moments.
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Extra stretch for growing babies
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Buttery-soft bamboo comfort
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Designed for longer wear
| Size | Best Starting Fit | Many Families Wear Through* | Weight Range |
|---|---|---|---|
| Newborn (NB) | Preemie - Newborn | Up to 2M | Up to 8 lbs |
| 0-3M | Newborn - 2M | Up to 6M | 8-12 lbs |
| 3-6M | 3-5M | Up to 9M | 12-16 lbs |
| 6-12M | 6-10M | Up to 18M | 16-22 lbs |
| 12-18M | 12-16M | Up to 24M | 22-27 lbs |
| 18-24M | 18-24M | Varies by fit preference | 27-30 lbs |
*Fit can vary based on your child’s height, growth pattern, and preferred fit. Our bamboo fabric is designed with extra stretch for longer wear.
Between Sizes?
- Prefer a snug fit? Choose their current size.
- Want extra room to grow? Size up.
- Our stretchy bamboo fabric is designed to grow with your little one.
Fit & Fabric Notes
- Made from signature buttery-soft bamboo viscose
- Snug sleepwear fit for safety and comfort
- Fold-over cuffs on smaller sizes
- Double zipper for easy changes