Best Mini Crib Mattress – Create The Perfect Slumber Space

Toddler staring out of crib bars

Babies love their sleep. And they’ll be doing a lot of that during the first few years of their lives. Whether this is a comfortable experience or not will depend on the crib mattress you pick. Make the right decision for your baby and pick the best mini crib mattress available. Pick one that’s comfortable. Pick the Moonlight Slumber Little Dreamer Dual Sleep Surface mattress.

Improved attention, memory, and overall health are just a few rewards your baby can reap from a good night’s rest. And this largely depends on the sleeping environmesnt — including the mattress you pick. So it’s clear: buying a crib mattress is a decision that should never be taken lightly. Let me help you pick the right one.

My Top Picks

Make Way for Mini Crib Mattresses

When it comes to buying a mini crib mattress, parents have their work cut out for them. Choosing the right crib mattress for your little one can be a little confusing. That’s why I’ve put together this short buyer’s guide to help you pick the right one. In it I’ll explain what a mini crib mattress is, why it’s important, and how to go about selecting the right option for your needs. I’ll also be answering all of your mini crib mattress buying questions.

What is a Mini Crib Mattress?

When buying a baby crib, parents are faced with two options; a standard or mini crib. As you’ve probably gathered the difference lies in the size. Naturally, a mini crib is much smaller than a standard one. As such you’ll need a mattress specifically designed for a mini and portable crib — a mini crib mattress.

How to Pick the Perfect Mattress for Your Mini Crib

Simply because you’re buying a smaller mattress for your baby’s crib doesn’t mean you have to compromise on factors such as quality and comfort. It’s your responsibility to create a safe and comfortable sleeping environment for your baby. So let’s discuss what factors you need to prioritize in order to pick the perfect mattress for your baby’s mini crib.


The mattress should fit perfectly in the crib — leaving no spaces around the edges. You don’t want your little one’s fingers or toes getting stuck in the gaps. When placed inside the crib, you shouldn’t be able to fit more than one finger between the mattress and the frame. This is probably a good place to mention compatibility. Some mattresses are only compatible with specific cribs while others are more versatile. Always pay attention to that fact.


Consider the firmness of the mattress in relation to your baby’s age. Infants need firm mattresses that can support their fragile bones as they grow. A toddler’s mattress doesn’t have to be very firm. How do you establish the firmness? Press your hand down onto the mattress. It should regain its shape fast. If you find it easy to sink your hand into the mattress, it means it’s not very firm.  While it may be ideal for toddlers, the only trade off is it’ll sag sooner rather than later. So try and strike a balance between the two extremes for your older kids.


As your baby grows older and puts on more weight, the mattress may start to sag making it uncomfortable for your little one. Some manufacturers counter this by incorporating a steel edge support design in the mattress and comfort cushioning. Picking such a mattress is in your baby’s best interests where comfort is concerned.


There’ll be a lot of wetness going on in that crib especially during the challenging potty training years. You want to make sure that you pick a mattress that’s waterproof and designed to resist mold formation. Pick one with a waterproof cover.


Is the mattress made up of organic or non-organic materials? If you prefer mattresses free from chemicals then pick one made up of natural materials. Mattresses made up of chemical ingredients tend to give off an unpleasant chemical smell especially soon after purchase. With any luck, it should disappear after a few days. But certain materials like polyurethane don’t stop off-gassing so keep that in mind.


Most of the factors stated above are determined by the type of mattress you buy. Know that there are different types of crib mattresses that are classified according to their construction. The construction ultimately determines the comfort, price, durability, and firmness of the overall mattress. Basically all the factors you need to consider when picking a mattress. Here are the common types:

  • Spring Mattress: This type is more of the traditional kind and features spring coils inside making it more resilient and sturdy. And no, the coils won’t be poking at your precious bubba while they sleep. Multiple layers of cushioning materials are placed over the coils to create a comfortable sleeping surface. In fact, such a mattress will offer your baby better support while he or she sleeps. The trade off is that these mattresses are a little heavier and certainly don’t come cheap. If you’re unlucky the coils might be a little noisy when your baby changes sleeping position.
  • Foam Mattress: If you prefer something lighter and cheaper, then opt for a foam mattress. This type is made of lightweight materials such as cotton and foam resin. What you need to consider is if the mattress is resilient. This is because foam mattresses aren’t nearly as durable as spring mattresses. However, the chances of a foam mattress lasting longer are higher if you pick one that’s denser and firmer.
  • Double-sided Mattress: Consider this option if you want value for your money. This type will grow with your child and is designed with your baby’s comfort in mind. It has a firm side which you can use during your baby’s younger years. Flip it over to the softer side when your little one grows older. This type is the most expensive of the three, but as I’m sure you’ll agree, it makes for a long-term investment.

Mini Crib Mattress Questions and Answers

I’ll round off this buyer’s guide section by answering a few burning questions you may have when it comes to crib mattresses.

Is it okay to buy a second hand mattress?

I’d strongly advise against it. Old mattresses may have mold and bacteria which is a huge health and hygiene concern for your little one. Here’s how long crib mattresses last.

Can I decorate my baby’s crib?

Placing fluffy pillows and teddy bears in your baby’s crib might look cute and cozy. But these items can be a real suffocation hazard for your child. So, rather not.

When is the right time to flip a double-sided mattress?

Check the manufacturer’s instructions for the right time to switch the mattress to the softer side. Alternatively, you can check with your child’s pediatrician. But most parents do so around the one-year mark.

Which position should my little one sleep in?

Always make sure that your little one is lying on their back. This can help prevent the risk of SIDS which is a common risk in a baby’s first year of life.

Best Overall – Moonlight Slumber Little Dreamer Dual Sleep Surface

First up, we have this double-sided mattress from Moonlight Slumber which I’ve voted the best overall on my list. You’ll soon understand why. It has a firm side designed for infants. When your little one grows a little older, simply flip it to the toddler side. The seams on this mattress are side stitched for added reinforcement. And it also comes with a waterproof cover.

Who It’s For

Because of its double-sided design it is perfect for newborns to toddlers.

Why You Should Consider This

I love that it has an infant and toddler side. Your baby will be sleeping comfortably on this mattress from the time they are born well into their toddler years. This lowers its total cost of ownership since you can use it simply longer. This mattress is treated for antimicrobial protection making it safe and hygienic for your child. And it’s also easy to wipe clean. A damp sponge will do the trick.

Product Information

  • Dimensions: 27.5 x 5 x 52”
  • Weight: 10.38lb
  • Material: Vinyl, polyethylene, nylon cover
  • Type: Double-sided mattress


  • Ultra firm
  • Won’t sag after some time
  • No funny noises
  • No odor


  • Cover not removable
  • Expensive
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Best Value – Dream on Me Portable Crib Mattress

Dream On Me 3 inch Spring Coil Portable Crib Mattress | Greenguard Gold Certified

This mattress falls under the umbrella of traditional mattresses and it has spring coils inside. This can only mean one thing: you’re guaranteed a durable and sturdy product. To top it off, the mattress features a waterproof cover to prevent leaks, mold formation and also keeps odors under control. Note that it’s specifically designed to use in Dream on Me cribs, so don’t buy it unless you own or plan on purchasing this crib.

This brand made it also to my list of best (mini) crib mattresses under $100.

Who It’s For

Perfect for newborns as its hypoallergenic, waterproof, AND affordable – that last one is for the parents, of course.

Why You Should Consider It

I’d say this Dream on Me Portable Crib Mattress is a very good buy. Firstly, it’s extremely affordable making it perfect if you’re working on a budget. But despite the reasonable price tag it’s made of high-quality materials and is super easy to clean. Simply wipe clean with warm water and mild soap.  You’ll like that the cover isn’t only waterproof but also hypoallergenic to prevent allergic reactions in your little one.

Product Information

  • Dimensions:38 x 34 x 3″
  • Weight: 11.45lb
  • Materials: Polyurethane
  • Type: Spring mattress


  • Provides ample support
  • Very tight fit (leaves no spaces at all)
  • Doesn’t make any noise when baby shifts sleeping positions


  • Produces unpleasant plastic smell
  • Might arrive with the corners a little squished because of poor packaging
  • Limited compatibility
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Best for Newborn – Sealy Baby Toddler and Baby Crib Mattress

Sealy Baby Firm Rest Antibacterial 2-Stage Dual Firmness Waterproof Baby Crib Mattress & Toddler Bed Mattress, 204 Premium Coils, Medical-Grade Surface, Hypoallergenic, Made in USA, 52'X28'

This Sealy Baby mattress also features a spring coil system to provide your newborn with optimum support while they sleep. The manufacturer even added all-round border rods to prevent the edges from sagging as your baby grows older which is a feature I love. Topping it all off, this mattress comes with a hospital-grade waterproof cover to keep odors and mold and mildew formation at bay.

Who It’s For

Perfect for children weighing up to 99lb.

Why You Should Consider This

Sealy Baby is an award-winning brand known for designing quality products. This product is no exception. It’s made of premium materials that have been rigorously tested for safety. The mattress is Greengaurd certified meaning that it’s free from harmful chemicals that can affect your home’s air quality and the eco-conscious parents will appreciate this immensely. Best of all it comes with a lifetime warranty.

Product Information

  • Dimensions: 51. 63 x 27.25 x 5,75”
  • Weight: 13lb
  • Materials: Vinyl
  • Type: Spring mattress


  • Thick mattress
  • Firm
  • Provides ample support
  • Greenguard certified
  • Lifetime warranty


  • Noisy when baby changes position
  • Some parents may find it too stiff
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Best for Toddlers – Graco Premium Foam Crib and Toddler Mattress in a Box

Graco Premium Crib & Toddler Mattress - GREENGUARD Gold and OEKO-TEX STANDARD 100 Certified, CertiPUR-US Certified Foam, Machine Washable Cover, Waterproof Sleep Surface, Fits Crib & Toddler Bed

If you’re not a fan of the spring coil mattress, you can pick this mattress. Firstly, it’s a Graco product so you KNOW it’s a quality product manufactured by a reputable brand. It’s breathable, machine-washable, meets federal standards, and has been specifically designed to fit any full-size crib and toddler bed. It’s also Greenguard certified meaning that the mattress is made up of non-toxic chemicals.

Who It’s For

An ideal choice for toddlers.

Why You Should Consider This

What you’ll love about this mattress is that the cover isn’t only water-resistant but also breathable, removable, and washable. Simply unzip the cover and throw it into the washing machine. That means that using the mattress is as easy as can be. I also love the universal-type design that makes it compatible with all bed and crib brands.

Product Information

  • Dimensions: 27.6 x 52 x 5”
  • Weight: 7lb
  • Material: Polyurethane foam, polyester cover
  • Type: Foam


  • Doesn’t leave any spaces
  • Easy to clean
  • Comfortable for older babies
  • Greenguard certified


  • Produces strong chemical smell
  • Not very firm
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Best for Durability – Eco Classica III 2-Stage Baby and Toddler Mattress

Colgate Mattress EcoClassica III Eco-Friendlier Crib Mattress - Dual-Firmness Infant and Toddler Mattress with Thick, Sustainable Foam and Certified Organic Cotton Cover

This is yet another dual-sided mattress designed for both infants and toddlers. The extra firm side is designed to use during your baby’s first years. You can switch to the less firm side when your baby is a little older. It ticks all the green boxes, fits most American-made cribs, and boasts a handcrafted build.

Who It’s For

This is the perfect option for parents that want a mattress made of organic materials.

Why You Should Consider This

This mattress is made of premium organic materials which are ideal if you’re not a fan of chemically laced products. Best of all, it features a sturdy construction and is handcrafted using durable materials. You’ll love that it’s designed to fit most American cribs which is a huge plus.

Product Information

  • Dimensions: 51.6 x 27.25 x 6”
  • Weight: 6.85lb
  • Material: Organic cotton
  • Type: Double-sided


  • Sturdy construction
  • No strong odors
  • Lightweight but firm


  • Expensive
  • Not very waterproof
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Buying a crib mattress is a huge commitment. It’ll serve as your little one’s resting haven for years to come. You want to make sure you make the right decision. I understand that your finances will probably determine the mattress you buy. But I urge you not to make the price tag the deciding factor. Rather prioritize factors that’ll contribute to your baby’s comfort. Firmness, support, and anti-sagging properties are just a few factors you should place high up on your priority list when picking one.

From my list of recommendations, the Moonlight Slumber Little Dreamer Dual Sleep Surface mattress meets all those specifications and more. This double-sided mattress is designed with your little one in mind from the very first day they lay on the mattress right up to toddlerhood. No mattress sagging. No smells. And it’ll hold up for years. Yes, it’ll cost you, but I believe it’s very much worth EVERY single penny.

Last update on 2024-06-17 / Affiliate links / Images from Amazon Product Advertising API

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