Make potty training easier and more confident.
¿Tienes una cuenta?
Inicia sesión para finalizar tus compras con mayor rapidez.
Make potty training easier and more confident.
¿Tienes una cuenta?
Inicia sesión para finalizar tus compras con mayor rapidez.
Most buyers add these items to their order.
Keeps mattresses dry and stain-free.
Extra absorbency for overnight and long trips.
No more diapers. No more stripping the bed at 2am — just big-kid undies, a protected mattress, and a child who wakes up proud.
Your child isn't being lazy, and they're not doing it to you. Staying dry at night is a different skill from the daytime. Children's doctors say it's normal for kids who use the potty well all day to wet at night until around age five, and about 1 in 5 five-year-olds still does. At night their body has to hold more than a small bladder can, or wake up in time. That comes with growing. It's development, not behavior.
Night-time diapers. Puppy pads under the fitted sheet. The waterproof cover, the 10pm half-asleep potty trip, no drinks after dinner. Even the “one dry week, then undies” plan usually ends the same way: one soaked mattress at 2am and the diaper goes straight back on. Every one of them guards the bed. Not a single one lets your child feel what's happening.
You'd think nights would follow days. They don't. In the day, your child feels the urge and runs. At night they're in deep sleep, and that signal has to get through on its own. Then the disposable soaks it up in seconds, before they can notice a thing. The same kid who nails the potty at lunch goes back in a diaper at bedtime, and they know the difference.
Three layers do what a disposable and a puppy pad can't do together. Soft, undyed cotton sits against their skin, so if they wet, they feel it. That's the same cue bedwetting alarms are built on, without the siren. Absorbent layers (plus an extra insert for long nights) hold it, and a waterproof outer keeps it off the mattress. It doesn't force anything. It just stops hiding the signal while their body catches up.
Parents don't tell us the laundry got easier. They tell us their child would rather sleep in these than a diaper, and loved the prints straight away. They tell us the night-time messes stopped reaching the sheets. And when the dry mornings come, on their body's own schedule, it's your child's win, not the diaper's. Join 350,000+ parents who chose big-kid undies over disposables.
Pick a bundle, get up to 6 pairs on us, and make tonight the first big-kid night.
Claim your free pairsReal reviews from UpAiry parents.
“My little one had her first accident in these and I'm impressed by the absorbency, the outside stayed dry. The adorable colours and patterns made potty training much more enjoyable!”
“These training pants are fantastic, I've bought them twice for my 2-year-old. He prefers them over nappies for bedtime. Soft and comfy, and he loved the designs immediately. No leaks so far!”
“We absolutely love these! My 4-year-old wears them at night and my 2-year-old uses them during the day. They've helped us a lot potty training both. Love them!!”
“No more nighttime messes! I'm so grateful for these.”
“My daughter feels so confident wearing these and it makes potty training fun for her. The snug fit means no leaks and she loves the patterns.”
“Truly life-changing! The leakproof layers are a game-changer for nighttime potty training. No more messes and my couch is safe.”
The part nobody else is looking at
Everything else protects the bed. Night dryness comes from inside: a body that holds more overnight and a brain that learns to wake. And the night-time diaper hides the one signal their body has to go on.
It isn't a lazy bladder. At night the body can make more pee than a small bladder holds, and in deep sleep the “wake up” message doesn't get through in time.
Night-time diapers catch everything and pull it away from the skin in seconds. That keeps the sheets dry, and keeps your child from ever feeling it.
Soft undyed cotton against their skin. Absorbent cotton and gauze behind it, plus an extra insert for long nights. A waterproof outer, and a bed mat underneath.
Ready to swap the night-time diaper for big-kid undies?
Try UpAiry risk-freeWhat many parents notice
A typical first six weeks. Every child's body sets its own pace for dry nights. Here's what the switch itself changes.
Bedtime stops being a standoff about the “baby” diaper. Undies on, insert in, mat down, lights out.
On a wet night the outside stays dry and the mattress stays out of it. Some kids start waking and calling out when they're wet. That's the feeling getting through.
A wet night is now a quick swap of undies and pajamas, not a 2am strip of the whole bed. Keep a spare set by the bed and you're both back asleep in minutes.
Undies at night are simply what they wear now. And when the dry mornings come, on their body's schedule, there's no diaper to take the credit. Just a kid running in to tell you: “Mom, I'm dry! Like a big kid!”
✦ HALLOWEEN Special — Buy More, Save More
Start tonight and pick the bundle that fits.
EXPRESS US Shipping
Questions
Everything parents ask before swapping the night-time diaper.
Yes. The layer against their skin is soft, undyed, unbleached cotton, breathable and gentle. Because they let your child feel wet (that's the point), change them as soon as you know they're wet, and give their skin a quick wash in the morning after a wet night.
No undies can rush a body that isn't ready. Night dryness comes with growing: a body that holds more overnight and a brain that learns to wake. What these change is everything around it. Your child feels it instead of having it hidden, they sleep in big-kid undies instead of a diaper, and the bed stays protected while their body catches up.
A whole night can be more than one accident's worth, so plan for it. Add an extra absorbent insert for nights, put our waterproof bed mat under the sheet, and choose a snug fit around the legs. No product is leakproof in every situation, but that setup is built to keep a wet night off the mattress.
Most kids get excited about sleeping in real big-kid undies. Let them pick the print and pull them on themselves, so it's their choice. And if it's still not right for your child, you're covered by our 75-day money-back guarantee.
Yes. They're underwear, so they fit alongside whatever you're doing: a last potty trip before bed, fewer drinks in the evening, or an alarm your doctor recommended. Always follow your doctor's plan first.
Sizes go by weight, not age. Large fits 35–55 lbs (17–25 kg). If your child is between sizes, check the size chart in the product section above.
Children's hospital guidance says to see your doctor if your child is still wetting the bed regularly past age 6–7, starts wetting suddenly after a year of dry nights, is upset about it, or has trouble staying dry in the day after being trained.
Night-time diapers are built to keep your child feeling dry, so they never notice a thing. UpAiry lets them feel it while the layers, insert and bed mat protect the bed. It's the one part every other night-time fix leaves out.
Every child is different. That's why every order has a full 75-day money-back guarantee. If it's not right for your child, email hello@upairy.com for a full refund. No need to send them back.
Still unsure? Email us at hello@upairy.com
Bodies take their own time at night, so we give you plenty of it. Every order is covered by our 75-day money-back guarantee. 100% satisfaction, no fuss.
Start their big-kid nightsUpAiry Potty Training Underwear is a training tool, not a diaper, and not a treatment for bedwetting (nocturnal enuresis). It is designed to hold an accident while giving your child a “wet” cue. No product is leakproof in every situation, especially overnight; use an extra absorbent insert and a waterproof mat for nights. Change your child promptly after an accident. Bedwetting is common and usually part of normal development. Talk to your pediatrician if it continues past age 6–7, starts suddenly, or upsets your child. Individual results vary.
