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Dad holding a baby wearing a Coterie diaper and a stuffed bunny.

Diaper Guide

All of your diaper questions answered, so you don’t have to ask.

01
Finding the perfect size for your baby
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Let’s start with the basics. Diapers range from size NB (newborn) to size 06.
Where to start

Your baby’s diaper size is calculated by their weight. You can then size up or down depending on their weight or waist measurements.

Size finder
When to size up

There are a few signs that tell you it’s time to size up.

→ Frequent leaks or blowouts


→ Red marks


→ Difficulty fastening the tabs at your baby’s waist

Size chart
Baby bonus
Most babies grow out of the smallest sizes (size NB and size 01) in three to six weeks, and then wear larger sizes (size 03 and 04) consistently for six to nine months.
02
So long, leakage
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Issues with leakage are commonly caused by the wrong size or poor fit. Here are some tips to help prevent them.
Position the diaper at the belly button, and even higher in the back.
Hold down the sides of the diaper and gently pull the tape over.
Make sure the edges aren’t folded inwards, creating gaps and gathers.
03
It's changing time
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Every baby is unique, but newborns typically go through about 8-10 diapers per day.
Every 2-3 Hours
During the day
Change your baby every 2 to 3 hours, unless he or she needs it sooner. A mostly wet diaper moves like jelly and should be changed.
Let Your Baby Sleep
During the night
It’s not necessary to wake them unless the diaper is soaked through to their pajamas.

See how many diapers your baby will wear at every size

Newborn

01

02

03

04

05

06

Newborn

01

02

03

04

05

06

About 8-10 diapers per day

A smooth process, a smoother bottom

Always dab, never rub

Use a cotton pad soaked in lukewarm water to clean the harder stuff. Then wipe.

Wait until dry

Put on a fresh diaper only after your baby’s bottom is completely dry.

Put them at ease

Make them feel safe by showering them with love — look them in the eyes, smile, and talk to them.
Baby bonus
There is no need for daytime and overnight diapers. Our diapers are absorbent enough for overnight protection and flexible enough to move throughout the day.
04
What's inside
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The color of your baby’s stool is an indicator of their health. It’s important to know what’s normal, and when to check in with your doctor.
What to expect in the first few months

Your baby will go through a range of stool colors, especially as their diet changes. For the most part, any shade of autumn is ok.

After introducing solid foods

The more you add to your baby’s diet, the more normal their stool becomes. Make sure to watch out for signs of constipation or diarrhea.

Baby bonus
Your baby’s first stool is likely to be green-black in color and tar-like in consistency. This is normal! It’s called meconium, and contains the amniotic fluid that your baby was exposed to in the womb.
05
Diaper rash
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Diaper rash is common for most babies. It’s easily treatable and often preventable, but always contact your doctor with concerns.

The key is to keep your baby’s bottom 
clean and dry

Change diapers often

The simplest tip is to avoid exposing your baby’s skin to a soiled diaper for long periods of time.

Choose a gentle wipe

Clean your baby thoroughly. Don’t forget the thighs and lower stomach!

Pat their skin dry

Make sure your baby’s bottom is completely dry before you put on a fresh diaper.

We're here for you at every step of the parenthood journey. Reach out with any questions you have along the way.

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