1. Made with totally chlorine free pulp
Coterie is actually the #1 selling TCF pulp diaper on the market*. They go above and beyond – they’re certified safe from 1,000 potentially harmful chemicals including regulated PFAS* and are one of the only diaper brands to publish their Safety Report. Bonus: Their wipes (another must-have!) are EWG Verified, supremely soft, and made with 100% plant-derived fibers.
2. Free trial pack of next size up
Coterie takes the guesswork out of sizing. Your first subscription box comes with a trial pack of the next size up, ensuring the perfect fit right away (plus, you save 10% when you subscribe). And with their Size Assist tool, you’ll always know when it’s time to consider moving on to the next.
3. Supports uninterrupted sleep
Imagine sleeping in a damp towel… unthinkable, right? Diapers need to absorb quickly to keep your baby from waking up from the cold liquid. With up to 12 hours of leak protection, Coterie is designed for long stretches. It absorbs in record speed and holds more than two full cups of liquid (16 oz) which helps eliminate middle-of-the-night changes.
4. Bye bye leaks, blowouts, and diaper rash
Coterie’s blowout-blocking fit, super fast absorption, and high liquid capacity work together to help stop leaks and blowouts before they happen. Think: Fewer changes, less laundry, and happier babies and parents. 94% of parents report no skin irritation – Coterie minimizes the case of moisture-related diaper rash.
5. 24/7 diaper concierge
Our top-tier service is always available (even via text!) and ready to adjust your size, reschedule a delivery, track down a package, or answer any questions. From fit guidance to diaper advice, we’ve got you covered 24/7.
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- Matea, 3 years
- 34 lbs 37 in
- Olivia, 2 years
- 30 lbs 33.5 in
The Diaper
Designed for all-night protection: Supports uninterrupted sleep
Save 10% with Auto Renew In CartOne-time purchase available for $105
Designed for sleep
Helps minimize overnight leaks
Independent lab tested
Up to 12 hour leak protection while sleeping
Overnight Performance
- Parents report getting 10+ hours of sleep a night after switching to Coterie*
- Up to 12 hour leak protection to support uninterrupted sleep
- Designed to minimize leaks through long stretches and deep sleeps
- Keeps babies dry to eliminate middle-of-the-night changes
- Feels like cashmere to keep baby comfortable and cozy all night
*Individual results may vary
Size + Pack Details
We optimize our boxes according to the average number of changes babies need as they grow. Each box contains 6 packs of diapers, approximately a one-month supply:
- N (< 10 lbs): 186 total count/box (~6 changes/ day)
- N/1 (<10-12 lbs): 192 total count/box (~7 changes/ day); this box includes 3 packs of Size Newborn (93 count) + 3 packs of Size 1 (99 count)
- 1 (8-12 lbs): 198 total count/box (~7 changes/ day)
- 2 (10-16 lbs): 186 total count/box (~6 changes/ day)
- 3 (14-24 lbs): 168 total count/box (~6 changes/ day)
- 4 (20-32 lbs): 150 total count/box (~5 changes/ day)
- 5 (27+ lbs): 132 total count/box (~5 changes/ day)
- 6 (35+ lbs): 108 total count/box (~4 changes/ day)
- 7 (41+ lbs): 96 total count/box (~4 changes/day)
| N (<10 lbs) | 186 total count/box | ~6 changes/ day |
| N/1 (<10-12 lbs) | 192 total count/box | ~7 changes/ day |
| 1 (8-12 lbs) | 198 total count/box | ~7 changes/ day |
Every baby is different! You can modify Auto-Renew delivery frequency on your Account Page.
Benefits of Auto-Renew
- Save 10% on every order
- Delivered to your door on your schedule (every 3, 4, or 5 weeks)
- Manage everything—from product size to delivery date—via text
- Happiness guarantee: we’re standing by to help with any questions or issues
Customer Reviews
- “Worth the price for my baby being able to sleep comfortably through the night without changes in this diaper.” – Andrea, Verified Review
- “We swear these diapers have helped her sleep through the night from such a young age because they hold everything in without irritating or bothering her.” – Kaila, Verified Review
- “She’s sleeping 10 hours a night at 10 weeks old. Coterie for the win!” – Catherine, Verified Review
- “My baby was waking every 3 hours soaking through his diapers, pajamas AND sheets. Not only is he sleeping through the night now, he’s tolerating car rides! These diapers are pure magic” – Sarah, Verified Review
- “Well worth the hype, no joke. Our son started sleeping through the night when we started using these.” – Christopher, Verified Review
Our safety standards
The Diaper is free of fragrance, lotion, latex, rubber, dyes, alcohol, parabens, phthalates, chlorine bleaching, VOCs, and optical brighteners. It’s hypoallergenic, cruelty-free, dermatologist-tested, and third-party tested by independent labs; we publish the results for transparency.
Zero Chlorine Bleaching
Dermatologist Tested
Clinically Proven Hypoallergenic
No Parabens, Dyes, Phthalates, Fragrance
Your babies in Coterie
What do parents think?
Diapering FAQs
Can a really great diaper really make a difference?
Will our diapers do your dishes and taxes? Probably not. However, a really great baby diaper experience can help soften the landing into new parenthood in a few key ways.
Minimized leaks and blowouts can mean you’re not waking up 3 times in the middle of the night to change diapers, clothes, and crib sheets.
Apparel-grade, dermatologist-tested materials and clean diaper ingredients can provide your baby comfort and you some valuable peace of mind.
And you can’t underestimate the convenience of a diaper subscription (especially with some babies needing half a dozen diapers a day). Our diaper subscription means the diapers show up to your door automatically on a schedule that works for you—no more 10 PM runs to the store when you inevitably realize mid-diaper change that you are, in fact, out of diapers.
What causes diaper rash, and how can I help prevent it?
Diaper rash is very common! About half of all babies develop diaper rash at some point during their first years. Excess moisture can lead to microbial growth and skin irritation—the diaper area is damp, warm, and an ideal environment for bacteria and yeast. Diapers that hold moisture well and absorb quickly can help minimize the likelihood of diaper rash. Based on lab testing, The Diaper absorbs up to 4x faster and keeps skin up to 3x drier than leading brands to reduce the likelihood of irritation.
Fragrances, certain dyes, and chemicals like chlorine may also contribute to skin barrier disruption.
Who decides what ingredients diapers should be ‘free of’?
Believe it or not, baby diapers aren’t a regulated product category since they’re not intended to be ingested or absorbed by the skin (even though babies are in close contact with their diapers almost 24/7 for their first years of life!). However, as a team of many parents, we go above and beyond industry norms in developing our safety standards with third-party labs (since these labs aren’t affiliated with our brand, there aren’t result biases).
Our diapers undergo two types of tests: The first is an analytical test where an independent lab evaluates the diapers to ensure they’re free (or below detectable levels) from potentially harmful chemicals. The second is the HRIPT test for skin sensitivity, conducted by trained clinicians and supervised by dermatologists. All materials that may come in contact with babies’ skin are tested to make sure they don’t cause allergic reactions or sensitivities—this lets us say our diapers are hypoallergenic.
How do I know if I have the right diaper size?
You know that uncomfortable feeling when your pants are a button too tight? We all just want to be comfortable, and your baby is no different. Ensuring you have a properly sized and fitted diaper can help keep them comfortable and happy, and can even help minimize leaks and blowouts.
A properly fitted baby diaper sits snug on the waist right at, or just slightly below the belly button. The tabs fasten right in the middle of the landing zone (no overlapping!), and there are no gaps in the waist or around the legs.
For more info, you can reference our Sizing 101 page. And when you sign up for our diaper subscription, we’ll also include a Trial Pack of the next size up so you can test out which one is most comfortable for your baby, and see when it’s time to size up.
My baby hates diaper changes…help!?
Many of us are parents, so we’ve been there. It’s tough—but normal!—when the changing table brings on tears and tantrums. Here’s our tips for when you sense a diaper change meltdown on the horizon:
1. Communicate what you’re doing! Diaper changes can be really overwhelming as a baby, and they don’t have many tools to express themselves. Narrating the diaper changing process out loud—like, ”now I’m going to wipe you! We’re getting you clean and comfortable”—can give your child a sense of routine and understanding.
2. Use diaper changes as a time to bond and interact positively. Let your baby play with a special toy that’s reserved for diaper changing time, put on a favorite song, and say positive phrases with lots of affection.
3. If you’re dealing with an especially wiggly baby—or one who’s recently discovered the new skill of running away, it could be a perfect time to try The Pant. It’s our diaper-pant hybrid specifically designed for easy changes for those babies known to make diaper changes resemble alligator wrestling matches.