Most parents know the switch from regular diapers to pull-up diapers is coming — but when? And what should you keep in mind? This guide answers exactly that: the signs to look out for, the size guide, and what actually makes a pull-up diaper good for your baby.
What's actually the difference between a regular diaper and a pull-up diaper?
A regular diaper (open style) fastens with tapes on the sides. A pull-up diaper goes on and off just like a pair of underwear — no fasteners. That makes it easier to handle once your baby starts moving around more.
Pull-up diapers give more freedom of movement around the hips and thighs, which is why most parents make the switch when their baby starts crawling, standing, or walking.
When is it time to switch to pull-up diapers?
There's no exact answer — it depends more on how your baby moves than on their age. But there are clear signs:
• Your baby starts crawling: Open diapers can slip and fit poorly when your baby is on the move a lot. The pull-up style stays in place better.
• Your baby tries to stand up: Pull-up diapers are quicker to put on and take off, which makes diaper changes easier when your baby won't lie still.
• Your baby starts potty training: A pull-up diaper pulls down just like regular underwear — perfect for making potty training a natural routine.
• Open diapers are leaking: If the diaper often slides to the side or leaks around the legs, the pull-up style may be a better anatomical fit. That said, a good tip is to stick with open diapers at night, as they usually perform better then.
Typical age: Most babies switch to pull-up diapers somewhere between 6 and 12 months — but switching earlier or later is completely normal.
Size guide — how do you choose the right size?
Pull-up diapers are sized by weight, just like open diapers. Bammies pull-up diapers come in the following sizes:
|
Size |
Weight |
Age (approx.) |
|
The Baby |
6–9 kg |
6–10 months |
|
The Toddler |
8–14 kg |
9–18 months |
|
The Kiddo |
10–16 kg |
15 months+ |
Note: If your baby is between sizes — choose the smaller one. Our pull-up diapers run large.
What makes Bammies pull-up diapers different?
• Bamboo fiber against the skin — soft, breathable, and gentle even on sensitive skin
• Stretchy sides with bamboo closest to the skin that move with your baby
• Free from fragrance, lotion, and unnecessary additives
• Up to 12 hours of leak protection — even for active nights
Can pull-up diapers be worn at night?
Yes — Bammies pull-up diapers work just as well at night as during the day. The absorbency is the same regardless of style. Choose a size that doesn't sit too tightly around the tummy when your baby sleeps on their side.
Frequently asked questions about pull-up diapers
Do you have to change sizes when switching to pull-up diapers?
Not necessarily. Pull-up diapers start at size The Baby (from about 6 kg). If your baby is under 6 kg, it's better to hold off on the pull-up style.
Can you use pull-up diapers and open diapers at the same time?
Absolutely. Many parents use pull-up diapers during the day when their baby is more active, and open diapers at night. Do whatever works for your family.
What's the fastest way to take off a pull-up diaper?
Tear open the sides — that's why they're perforated. You don't need to pull it down the legs. Perfect when there's been an accident. You can then roll up the diaper and seal it with the tape on the back.
Read more Bammies tips here!
