If there’s one issue many people deal with when caring for their children, it’s accidents happening overnight. As they sleep, they can have an accident or two that their usual diapers can’t handle, creating bigger messes to clean. That’s why I decided to get overnight diapers like Underjams, which helped lessen the frequency of changing throughout the night.
However, I know how confusing it can be looking for the right size for your little one. That’s why I decided to do the research to learn about the different sizes available, so read on! I’ll show you a short guide on overnight diapers and choosing the right size for your little one.
Overnight Diapers Size Charts

These are the seven best overnight diapers to choose from and their respective sizes:
Huggies Overnites
This is the brand’s most absorbent diapers available today. It has the SnugFit waistband which offers around 12 hours of leak protection AND has adorable Winnie the Pooh designs.
•16-28 pounds: Huggies Overnight Size 3
•23-37 pounds: Huggies Overnight Size 4
•27-35 pounds: Huggies Overnight Size 5
•Over 36 pounds: Huggies Overnight Size 6
Goodnites Underwear for Boys
It’s made with a soft and breathable outer layer for better sleep.
These have the awesome design with trucks, skates, and choppers made for boys, also having size catered to their slightly bigger size. It’s made with a soft and breathable outer layer for better sleep. This is their Goodnites Size Chart:
•38-65 pounds: Overnites Size Small or Medium
•58-85 pounds: Overnites Size Large or XL
Goodnites Underwear for Girls
Girls will love these cute overnight diapers, which have heart, monkey, and butterfly designs! Just like Goodnites for boys, it has a soft and breathable outer cover for leak protection. These are the Goodnites sizes for their girl’s diapers:
•38-65 pounds: Overnites Size Small or Medium
•58-85 pounds: Overnites Size Large or XL
Pampers Baby Dry Extra Protection
It also has soft fasteners and stretchy sides for easy wearing AND cool Sesame Street designs.
These Pampers can offer up to 12 hours of leak protection, built with Xtra-Absorb zones to stay dry. It also has soft fasteners and stretchy sides for easy wearing AND cool Sesame Street designs.
•16-28 pounds: Pampers Size 3
•22-37 pounds: Pampers Size 4
•27-35 pounds: Pampers Size 5
•Over 36 pounds: Pampers Size 6
Underjams for Boys
These also come from Pampers, featuring Nightlock cores which lock away all fluids to keep your little one dry. It also has a cloth-like material, adding to its comfort for your little one. This is their Underjams size chart:
•38-65 pounds: Underjams Size Small or Medium
•58-85 pounds: Underjams Size Large or XL
Underjams for Girls
They’re just like the boy’s version, having Nightlock cores for leak protection AND comfort with cloth-like material. Plus, these types of pampers are under FSA funds, so you’re able to get it for free as needed.
•38-65 pounds: Underjams Size Small or Medium
•58-85 pounds: Underjams Size Large or XL
Pure n Gentle Pajama Pants
These are best suited for both boys and girls, having white outer covers which won’t show through your baby’s pajamas. It also features tear-away sides and leg cuffs to remove easily and prevent leaks.
•38-65 pounds: Pure n Gentle Size Small or Medium
•60-123 pounds: Pure n Gentle Size Large or XL
How to Choose the Best Overnight Diapers
However, you can only reap these benefits if you choose the RIGHT overnight diaper!
Investing in overnight diapers is highly beneficial for the following reasons:
•It has extra absorbency properties, with extra layers to ensure dryness throughout the night. That way, your baby won’t wake up frequently to accidents, which are uncomfortable AND unsafe.
•These diapers have better leak protection, absorbing liquids well and preventing it from spilling onto the bed. It fits babies snugly with little chances to prevent leakage and messes.
• It’s extra comfortable, made of softer materials to keep moisture away from the skin. This has them sleep even better without waking up abruptly.
However, you can only reap these benefits if you choose the RIGHT overnight diaper! With that said, how will you know which is the best overnight diaper for your little one? Here are the important factors to consider besides its size and fit:
What’s It Made Of?
Get polyurethane laminate, nylon, or wool for cloth diapers for its comfort.
I highly recommend that you either get diapers made with absorbent polymers (SAP) in disposable diapers. If you use cloth diapers, opt for cotton for affordability, or bamboo and hemp for more absorbency (though expensive).
As for its outer layer, I recommend getting those made of a mix of either polyethylene and polypropylene for disposable diapers. Get polyurethane laminate, nylon, or wool for cloth diapers for its comfort.
Any Allergies or Sensitivities?
Babies are very sensitive while some are allergic to certain materials and ingredients diapers use. Because of that, watch out for the following ingredients:
•Fragrances which have artificial chemicals
•Dyes from the diaper design which may cause rashes
• Chlorine that makes diapers white though may be considered unsafe for babies
Leak Protection and Absorbency
Overnight diapers require superior leak protection and absorbency to prevent messes and discomfort while sleeping.
This is the most crucial part of the diaper you’ll need to focus on besides the size and fit. Overnight diapers require superior leak protection and absorbency to prevent messes and discomfort while sleeping.
Besides absorbent materials, good overnight diapers need three or four layers within their absorbent cores. You might even want to consider getting diapers with extra leak guards!
How Much Is It?
I recommend that you set REASONABLE budgets
Of course, you also have to consider how much you’re shelling out for the chosen diaper. Fortunately, overnight diapers also come at cheaper prices, but I recommend that you set REASONABLE budgets.
Avoid overspending, but don’t expect the cheapest ones to provide the best leak protection. Just get simple diapers with ONLY the features you need!
Wrapping It Up
Overnight diapers are such a Godsend for anyone who has babies that sleep through the night. No need to wake them up nor do you have to worry about making messes anymore. With the right size, the diapers stay snug and in place no matter how much they move!
I hope this article on Underjams, Huggies, and Goodnight Diaper sizes gave you an idea on what to get. So don’t wait any longer and make the right investment for your toddler now.
If you have any questions or want to share your knowledge on overnight diaper sizes, then comment below. Your thoughts are much appreciated!