Best Baby Crib Mattress of 2018 & Buying Guide

Okay – so you’ve recently had a baby, or are preparing to have one in the near future. That’s great! That means you’re looking to buy a new best crib (or you already have) and you want to know what the best mattress you can buy for your young one will be.

If you haven’t bought a crib yet, you should know that some brands come with a mattress included. Some, but not all – and this can make things tricky. It’s not as simple as matching the measurements of your crib and finding a mattress that can fit in snug. There are many attributes of a baby mattress that you’ll want to consider before dedicating yourself to a purchase.

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What makes baby mattresses different?

The main things that you’re going to want to consider when buying a mattress are probably already on the top of your mind. These things are

  • You don’t want your baby to be unhappy every night as it curls up to sleep in its new crib! That would be inhumane!
  • What’s the point in buying a mattress for your crib if it doesn’t fit?
  • There’s no sense in buying a properly fitted and comfortable mattress if it can’t support your baby and it sinks down to the hardwood of your crib.
  • This is the most important aspect of buying a mattress, a crib, or anything else your baby will be using. Many mattresses may be comfortable and sized well but neglect to pay attention to the safety of your baby.


There are several different materials that are used to make baby’s crib mattresses, and these have an impact on different aspects of the end product.

Foam mattresses are very soft. They’re also very comfortable which is appealing on the surface. It’s also a great budget choice because, when compared to the alternatives, a foam mattress is probably going to be a lot cheaper. They’re also lighter.

  • Foam mattresses also come with a risk of minimal support. If you have a heavy baby, it might not be able to be fully supported by a foam mattress and end up being uncomfortable.

Innerspring mattresses are basically mattresses with a box spring. They tend to be a bit more expensive, but the money that you end up paying is well worth it. You’ll be rewarded with a much sturdier and more stable mattress option that’s going to last you a lot longer than a foam mattress.

  • The number of coils in your mattress determines its springiness and also its price. More coils means more comfort, but you’re going to be paying a few more bucks for it.
  • The thickness of the wire used in the coils determines how firm the mattress will be. This makes it even more comfortable, particularly for heavy babies.

Organic mattresses are a third option. Organic mattresses are typically made from cotton or some similar organic material, and they ensure that you’re going to get the healthiest possible mattress for your child. Organic mattresses are least likely to be cured with chemicals that could pose a threat to your baby, particularly if they’re allergy prone. You wouldn’t want your baby lying down face first in something they’re allergic to!

  • Unfortunately, organic mattresses are the most expensive ones you can buy. The price you’re paying ensures the best possible health for your child, though.
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Are there any other specifics?

Certainly! Once you’ve determined what sort of material you want your mattress to be made of, you’ve only taken the first step towards making an actual purchase. There are a few more things you’re going to want to make sure of.

Comparing mattress and crib size

While mattresses are made to fit a regulated size, that doesn’t mean that every crib is. You can end up buying a mattress that’s too big or too small for your crib, so it’s important that you take measurements of both the mattress you plan on buying and the crib. If the measurements line up, then you might be good.

  • You don’t want there to be any empty space between the walls of the crib and the mattress. Your baby’s hands or feet could get stuck.
  • You don’t want your mattress to be so tightly fitted that it slides up either side of the crib!

The depth of your mattress should be no more than six inches thick and, in fact, if it is much bigger then it’s illegal in terms of the US crib compliance rules. Much thicker than that and your mattress can pose serious health risks.

The firmness of your mattress

As we mentioned earlier, innerspring mattresses are much firmer than their foam counterparts. This is a good thing – the less firm a mattress, the higher the risk of SIDS (sudden infant death syndrome.)

This isn’t the most well-understood phenomena, but what’s completely understood is that the results of SIDS can be tragic. More reports of SIDS have been reported when the baby has been using a very soft mattress instead of a firm one.

This doesn’t mean that foam mattresses are out-of-the-question. It just means that you need to take extra caution to ensure that your baby won’t come to harm.

Price range

Mattresses come in a lot of different prices and these prices reflect their quality.

Buying a cheap mattress doesn’t always mean you’re buying a bad mattress, but it might mean that you’re going to have to take extra precautions to ensure the safety of your baby.

A high-priced mattress also doesn’t ensure that you’re getting a good quality mattress. You could end up buying an innerspring mattress that’s so packed with springs that it ends up being a detriment and posing a greater threat of injury to your child.

So what makes the best mattress?

The ultimate decision is one that you’re going to have to make, but to do so, you’re going to have to evaluate each of the things we’ve mentioned and apply that to the way you want your mattress to be.

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Your baby is your baby and it’s the only one like it. However, it’s possible to make a general decision as to which is the best mattress for the average baby. Not everyone has the average baby – in fact, most of us don’t! That’s why it’s important to understand the specific needs of you and your child before making a purchase.

That said, we’ve taken a look at quite a few different mattresses that are available on the market today. Using the information we’ve provided you, we’ve concluded which mattress is the best for the average parent. This doesn’t necessarily mean it will be the best for you – but that’s why we’ve included alternatives.

Guaranteed, one of the following mattresses will suit the needs of you and your child. We hope we can help you make a great purchase in the near future!

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1. Sealy Soybean Foamcore Mattress Review

The Sealy brand is quite popular as far as the purchase of baby mattresses go. They’re known for providing cheap, effective and long-lasting mattress using only the healthiest and most eco-friendly materials. They’ve been working at it for over a century.

This mattress, while coming in at a more-than-reasonable price, is made from an organic soy base. That’s right – you can take your love of healthy soy to your baby’s bed!

It comes with a waterproof cover that contains breathable slats so your mattress won’t run the risk of developing mold or having an infestation of pests.


  • It’s got the same hardness all throughout the mattress
  • It doesn’t have that prefurbished plastic smell that a lot of new mattresses do
  • The waterproof case is great for drooling babies


  • The core, while being advertised as made from soy, is less than 30% soy.

2. Naturopedic No-Compromise Organic Innerspring Review

This is a very high-performing mattress that’s made from nothing but non-toxic organic materials.  It’s very firm, coming with 150 coils in its construction. The inside is made from certified organic cotton which ensures a minimal chance of allergic reactions.

This mattress is known for providing excellent comfort for your baby. It passes the two-finger test fantastically (the two-finger test, if you don’t know, ensures that you can’t fit more than two fingers between the mattress and the crib. If you can, your baby is reliable to be at risk for injuries or suffocation.)

There are no seams in the mattress and the thread used to hold it together is known to last a long time. Because of this, you know his mattress will last you a long time.


  • Made from organic materials to minimize eco-damage and allergies
  • Is durable enough to last a long time
  • Comfortable and passes the two finger test
  • Reliable


  • Has a tendency to retain heat
  • On the more expensive side of crib mattresses

3. Simmons Beautyrest Beginnings Sleepy Whispers Review

This is another innerspring mattress that comes with a few added benefits. First off, t comes with an added lifetime warranty – so if it breaks, you’ll be able to replace it (though chances are, this will happen after your infant has grown beyond it. This means you can replace it and get a new one for a friend!)

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It’s not made with organic materials but this just means that the price is going to be more accessible. Even if it’s not organic, it’s hypoallergenic and water resistant to prevent the growth of pests or mold.

It passes the two finger test which assures that your baby won’t be at risk of dangers associated with the mattress being too small. It also has been shown to be extremely comfortable and durable. Unfortunately, with all these benefits packed it, the mattress happens to be quite heavy which makes it difficult for smaller parents to move.


  • It’s very supportive and can handle even the heaviest babies
  • It’s a reliable mattress that won’t fall apart or have its sems tear anytime soon
  • It’s a breathable mattress,minimizing contact with pests or development of mold
  • There’s no smell
  • It’s got a strong amount of support around the edge of the crib


  • Heavy as far as baby mattresses go

4. Safety 1st Heavenly Dreams Review

If the name isn’t enough of an indicator, this mattress takes safety as its first precedence.

While the material isn’t organic, it’s made from high-density foam that prevents your baby from sinking too deep into the material. It’s waterproof and made at a good size to fit most cribs.

The core of the mattress is made with a Thermo-bond material which prevents heat retention and ensures that your baby is kept at a reasonable temperature. It’s also made to last – the high density keeps it from ripping or tearing while retaining a good level of comfort for your baby.

Coming in at only eight pounds, this mattress is quite lightweight and easy to move. It’s Also known for being one of the best sizes to fit into the average crib!   Besides all of this, the Safety 1st Heavenly Dreams Mattress is one of the most affordable on the market.


  • It’s waterproof and will resist the growth of mold
  • It’s light enough to be easily carried and moved
  • It’s got a good support system
  • It’s extremely comfortable for your baby
  • It’s cheap!


  • Not the quietest mattress – makes ea bit of noise due to the vinyl cover

So which one’s the best?

Well, each parent might have a different idea of what makes the best mattress. Still, we’re here to choose which mattress is the best for the average parent with the average child.

In this case, we have to choose the Safety 1st Heavenly Dreams Mattress. It strikes a fine balance between price, reliability, comfort and durability. It may not be the quietest mattress, but hey – are babies the quietest? This surely won’t bother you, and if it wakes up your child, the mattress is comfortable enough that they’ll surely be coaxed back to sleep.

It’s also lightweight, cheap, and waterproof, so you can move it easily and won’t have to worry about drying it out.

Hopefully, our research has helped you make a good decision as to which mattress you’re going to buy!