Choosing the right growsuit or onesie for your baby is more important than it seems. These are everyday essentials that keep your little one comfortable, cozy, and safe—whether they’re sleeping, playing, or snuggling in your arms.
But with so many options available, how do you pick the best one? Should you go for zippers or snaps? Long sleeves or short? And what about fabric?
This guide will help you understand everything you need to know about baby growsuits and onesies so you can make the best choice for your little one.
1. What’s the Difference Between a Growsuit and a Onesie?
Many parents use these terms interchangeably, but they are slightly different:
✔️ Onesie (Bodysuit): A one-piece garment with snaps at the bottom, designed to be worn alone or under other clothes. Perfect for layering.
✔️ Growsuit (Sleepsuit/Rompers): A full-body outfit with long sleeves and legs, often with built-in feet. Ideal for sleep or colder weather.
💡 Tip: A onesie is great for daytime and warm weather, while a growsuit is best for cooler nights and cozy lounging.
2. What Fabric is Best for Baby Growsuits and Onesies?
A baby’s skin is delicate and sensitive, so fabric choice matters. Here are the best options:
✔️ 100% Cotton – Soft, breathable, and gentle on baby’s skin (Babivi’s growsuits & onesies are made of this!).
✔️ Organic Cotton – Free from chemicals and dyes, perfect for babies with sensitive skin or eczema.
✔️ Bamboo Fabric – Ultra-soft and moisture-wicking, but usually more expensive.
✔️ Avoid Synthetic Fabrics – Polyester and nylon can cause overheating and irritation.
💡 Tip: Look for GOTS-certified organic cotton for the safest and softest option!
3. Should You Choose Zippers or Snaps?
When it comes to changing diapers, convenience is key!
✔️ Zippers:
✅ Faster and easier for midnight diaper changes.
✅ Great for newborns who need frequent changes.
❌ Can sometimes rub against baby’s chin (look for zipper covers).
✔️ Snaps:
✅ Allows you to open only the bottom part for quick diaper changes.
✅ Ideal for warm weather (you can leave a few snaps open).
❌ Takes longer to fasten, especially when baby wiggles!
💡 Tip: For newborns, zippered growsuits save time, while snaps are great for summer onesies.
4. Long-Sleeve, Short-Sleeve, or Sleeveless?
The right sleeve length depends on season, temperature, and layering:
✔️ Long-Sleeve Growsuits – Best for winter and nighttime, keeping baby warm.
✔️ Short-Sleeve Onesies – Perfect for summer and layering under other outfits.
✔️ Sleeveless Onesies – Great for hot weather or pairing with leggings.
💡 Tip: Always dress baby in one more layer than what you’d wear for the same weather.
5. Should Baby Growsuits Have Built-in Mittens & Feet?
Some growsuits come with built-in mittens and foot coverings, but are they necessary?
✔️ Built-in Mittens – Great for newborns who tend to scratch themselves. Not needed after 3 months, when babies start using their hands more.
✔️ Built-in Feet – Ideal for keeping little feet warm at night without needing socks. However, some parents prefer footless ones for longer use as babies grow.
💡 Tip: If you want your growsuit to last longer, go for footless ones and pair them with socks!
6. How Many Growsuits & Onesies Do You Need?
Babies go through multiple outfit changes a day due to spit-ups and diaper leaks. Here’s a general guide:
👶 Newborn – 3 Months
✔️ 5-7 growsuits (for sleep & lounging)
✔️ 7-10 onesies (for daily wear & layering)
👶 3-6 Months
✔️ 5 growsuits (for sleep & cold days)
✔️ 7-8 onesies (for everyday outfits)
👶 6-12 Months
✔️ 4-5 growsuits
✔️ 5-7 onesies
💡 Tip: If you do laundry often, you might need fewer clothes. But having extras always helps!
7. Extra Features to Look for in a Quality Growsuit or Onesie
✔️ Envelope Neckline – Allows you to pull the onesie down instead of over baby’s head during messy diaper changes!
✔️ Flat Seams & Tag-Free Labels – Prevents skin irritation and discomfort.
✔️ Stretchy Fabric – Ensures longer wear as baby grows.
✔️ Easy-Access Bottom Snaps – Makes diaper changes quick and hassle-free.
💡 Tip: Babivi’s baby onesies and growsuits have all these features, making dressing easier for parents and more comfortable for babies!
8. Choosing the Right Size: Baby Clothing Size Guide
Babies grow fast, so sizing up can save you money. Here’s a quick guide:
| Age | Size (AU/US) | Weight (kg/lbs) |
|---|---|---|
| Newborn (NB) | 0000 | Up to 4 kg (9 lbs) |
| 0-3 Months | 000 | 4-6 kg (9-13 lbs) |
| 3-6 Months | 00 | 6-8 kg (13-17 lbs) |
| 6-12 Months | 0 | 8-10 kg (17-22 lbs) |
💡 Tip: If your baby is between sizes, go for the bigger size—they’ll grow into it!
Why Babivi Growsuits & Onesies Are the Best Choice for Your Baby
At Babivi, we design our baby clothing with comfort, safety, and convenience in mind:
✔️ 100% Cotton Fabric – Soft, breathable, and safe for sensitive skin.
✔️ Easy Zippers & Snaps – Hassle-free diaper changes.
✔️ Tag-Free & Flat Seams – Prevents irritation and discomfort.
✔️ Adorable, Gender-Neutral Designs – Perfect for any little one!
🎀 Shop Babivi’s baby growsuits & onesies today! Visit Babivi.com
Final Thoughts
Choosing the perfect baby growsuit or onesie doesn’t have to be overwhelming. Prioritize comfort, fabric quality, and easy access for diaper changes, and you’ll have the best wardrobe essentials for your little one.
💕 What’s your favorite onesie or growsuit feature? Let us know in the comments!
