For long nights
Overnight Diapers
The best overnight diaper fits snugly and holds a lot. Wispy Cloud diapers absorb 3x more and lock it in 2x faster, with up to 12-hour protection, so a wet diaper is less likely to be what wakes your baby. Many parents go up one size at night for extra capacity.
Shop Overnight Diapers10
Diaper + Dry Wipes Value Combo (Weekly)
$55.53$61.70
Diaper + Dry Wipes Value Combo (Weekly Bundle)
From $79.39$93.40
Night-time 101
What makes a diaper last all night
Absorbency that keeps up
3x the absorbency and 2x faster absorption, so long stretches stay dry.
Leak guards that seal
Advance blowout protection: secure leak guards help prevent leaks onto pajamas and sheets.
The right fit
Most night leaks come from fit, not capacity. Two fingers at the waist, leak guards pulled out.
Size up at night
Going one size up at bedtime adds capacity. If the waist gaps, stay at the day size.
Side by side
Overnight with Alppi vs typical diapers
| Feature | Alppi | Typical diapers |
|---|---|---|
| Protection | Up to 12 hours | Varies |
| Absorbency | 3x, locks in 2x faster | Standard |
| Thickness | 60% thinner | Bulky |
| Totally Chlorine Free (TCF) | ✓ | Varies |
Quick answers
Questions, answered
Do I need special overnight diapers?
Not always. A well-fitting, highly absorbent diaper often makes it through the night. If you see leaks, try going one size up at bedtime.
Should I size up diapers at night?
Many parents do. A bigger size holds more. Check the waist still fits snugly so the leak guards can do their job.
Why does my baby pee through the diaper at night?
Usually it's fit: tabs too loose, leak guards tucked in, or a size that's too small for a long stretch.
How long can a baby stay in one diaper overnight?
Wispy Cloud diapers offer up to 12-hour protection. Change sooner for poop or any sign of irritation.
Buying guide
Overnight Diapers guide
Overnight diapers from Alppi Baby are made to handle long stretches of sleep. With our LiquidLockâ„¢ core and Cloudfreshâ„¢ fabric, your baby stays dry, comfortable, and leak-free until morning
Parents love them because they mean fewer wake-ups, fewer changes, and more rest for everyone. These diapers are soft, breathable, and totally chlorine-free—so you get reliable protection without harmful chemicals.
Sleep Through the Night With Leak-Proof Comfort
No parent wants 3 a.m. sheet changes. Our overnight diapers are built for maximum absorbency and comfort, so your baby sleeps soundly.
Advanced Absorbency that Lasts
- LiquidLockâ„¢ core absorbs faster to keep skin dry
- Holds more liquid than regular diapers for longer protection
- Prevents leaks even during heavy sleepers
Breathability for Cool, Comfy Nights
- Cloudfreshâ„¢ fabric allows superior airflow
- Keeps diapers thin, soft, and lightweight
- Helps reduce overheating and irritation
Gentle On Skin and Free From Harsh Chemicals
Your baby’s skin is delicate, and our overnight diapers are designed to protect it.
Hypoallergenic and Dermatologist-Tested
- Totally chlorine-free (TCF)
- Free from fragrance, latex, dyes, alcohol, parabens, phthalates
- SGS lab-tested for safety and sensitivity
Softness You can Trust
- Feather-light nonwoven cover feels like cotton
- Stretchy waistband with soft hook tabs for a snug, comfy fit
- No harsh inks or adhesives
Designed For Parents Who Want Easy Nights
We know late-night changes are tough. Our diapers are made to make life simpler.
Smart Design for Stress-Free Use
- Individually sealed for hygiene and convenience
- Subscription options so you never run out
- Flexible sizing guide to get the perfect fit every time
Explore More From Alppi Baby
Looking for more than overnight diapers? Discover our other collections:
- Staff Picks – Curated favorites chosen by our team to make diapering easier and more joyful.
- Safety Page Collection – Diapers designed with extra safety standards, giving parents peace of mind.
- Wispy Cloud Diaper – Ultra-thin, breathable diapers for daytime comfort and all-day play.
Why Choose Alppi Baby
At Alppi Baby, we believe diapers should be more than just functional. Our products are inspired by the calm of the Alps—light, breathable, and safe for your baby’s skin.
Every diaper is made in FDA-registered facilities, tested for safety, and crafted with eco-conscious practices. Parents choose us because we combine science-backed performance with a caring, modern approach.
With Alppi Baby, you get overnight diapers that actually deliver on their promise: dry nights, happy mornings, and confidence for every adventure.
Frequently Asked Questions on Overnight Diapers
Do overnight diapers really make a difference?
Yes, overnight diapers are designed with higher absorbency and leak protection compared to regular diapers.
They hold more liquid and keep moisture away from your baby’s skin for longer stretches. This helps prevent middle-of-the-night wake-ups and reduces the risk of diaper rash.
When should you start using overnight diapers?
Most parents start using overnight diapers once their baby begins sleeping longer stretches, usually around 3 to 6 months.
If you notice frequent leaks at night or multiple wake-ups due to wetness, it’s a good time to switch. Overnight diapers are especially helpful once your baby is drinking more before bedtime.
What are overnight diapers?
Overnight diapers are specially designed diapers with extra absorbent cores and leak guards. They are built to last through the night, keeping babies dry until morning.
Unlike regular diapers, they have higher liquid capacity and stronger barriers to prevent blowouts and leaks.
Why not use overnight diapers all the time?
Overnight diapers are thicker and more absorbent, which makes them great for nights but not always necessary during the day.
Daytime diapers are usually thinner and more breathable, giving babies more freedom to move. Using overnight diapers only at night helps balance comfort, skin health, and cost.
Do you size up in overnight diapers?
Sometimes parents size up for overnight use if leaks continue, but it’s not always required. The most important factor is fit—if the waistband and leg cuffs are snug without gaps, leaks are less likely.
Always check the sizing guide and adjust only if your baby’s current size feels too tight or is consistently leaking.
Why nighttime leaks happen
Most babies sleep for longer stretches as they grow, which means one diaper has to hold more. Leaks at night usually come from one of three things: the diaper is full, the fit has gaps at the legs or waist, or your baby sleeps on their side or tummy and the liquid pools in one spot.
- Capacity: a long stretch needs a diaper that absorbs a lot and spreads moisture through the core.
- Fit: tabs fastened evenly, leak guards pulled out, and two fingers at the back waist.
- Position: side and tummy sleepers (once rolling on their own) need snug leg cuffs and a higher back.
What to look for in an overnight diaper
Look for fast absorption, a core that locks moisture in, and leak guards that seal without pinching. Wispy Cloud diapers combine Liquidlockâ„¢ absorption with advance blowout protection and a breathable, 60% thinner build, so your baby stays dry and comfortable without a bulky diaper.
Should you size up at night?
Many parents use one size up at bedtime for extra capacity. It works as long as the waist and legs still fit snugly. If the bigger size gaps, stay with the daytime size and focus on fit. Our size guide shows where each size starts and ends.
A simple bedtime routine for dry nights
- Change the diaper right before the last feed or right after it
- Pull out the leak guards all the way around the legs
- Fasten both tabs evenly, not overlapping
- Dress baby in a breathable layer so a damp diaper doesn't feel cold
- If you see leaks two nights in a row, try the next size up at night
How many diapers does a baby use at night?
Newborns often need a change or two during the night, especially after feeds. As babies sleep longer, many make it through with one diaper. If your baby wakes up wet or leaks through, it's usually time to size up at night or check the fit before bed.
Pair it with the right sleepwear
A breathable layer helps a damp diaper feel less cold, and a wearable blanket keeps loose bedding out of the crib. The Alppi bamboo sleep sack is 1.0 TOG, made for nurseries around 68-72°F.
When to call your pediatrician
Frequent leaks are usually about fit or size. If you notice fewer wet diapers than usual, very dark urine, or a rash that doesn't clear up after a few days, check in with your pediatrician.
