Complete Guide to Crib Mattress Height Adjustment

When you have the crib mattress, which can be adjusted what else do you want? There are several reasons why the height must be adjusted up and down, but above all, it is good for the baby’s growth. Most parents face different problems with how and when to adjust the crib mattress height. A complete guide to crib mattress height adjustment is the luxury in such accord, and mentioned below:

In this article, we have tried to clear some questions regarding crib mattresses:

Guide to Crib Mattress Height Adjustment

1. Is it safe to adjust crib mattress height?

Before we proceed, it is always good to consider crib mattress height adjustment overall. As per a recent study, toddlers can be injured differently, especially in their bassinets or cribs. It means that children around 180,000 younger than the age of two or the period of 18 years can get their treatment in the emergency rooms. Such problems are associated with the following:

  • Playpens
  • Bassinets
  • Cribs

2.      When is a good time to change the mattress height?

It entirely depends on the situation; however, there are some guidelines that you can use from the American Academy of Pediatrics to know the right direction. You can quickly get to the Crib’s highest level before moving down to the lowest as your baby grows and becomes more mobile.

The breakdown is written below:

  • Under-five months, when baby is immobile= highest setting of Crib
  • 6 -8 months, when baby is becoming mobile or baby is unable to stand with assistance= middle settings
  • 8+ months changing when baby is pulled to standing position = Crib at the lowest setting
  • Baby is 35 inches in height or more = Toddler bed

Complete Guide to Crib Mattress Height Adjustment

Height Levels of baby Crib Settings

Here are some stories of the baby’s crib setting

1. The Highest level

When your little one is under five months, the highest level is the right thing to choose. The highest setting is the best overall choice. At this stage, for the most part, the baby cannot climb or is immobile. Higher crib mattress levels can make lifting your baby super easy while placing less stress on your back by frequently placing the baby and then picking them up. Furthermore, it is easy to place your hand behind your baby’s neck and provide adequate support for their head.

2. Crib Height at Middle level

The lower crib mattress should be level in the middle height as soon as the baby cannot sit up on their own and is more mobile on their knees and hands. Furthermore, the exact time your child can sit up without assistance can change from baby to baby. However, you can expect them to do such an act when they are 6 to 8 months old.

Hence, you can adjust the height per their requirement as soon as they can sit independently. However, the best part is that your baby will start standing up independently without assistance. It is especially not easy for the middle crib mattress settings as they can be very good to reach on the top of the side rail. After that, you may set the crib mattress for different levels.


3. When to set the Crib Height at the Lowest Level

You can use this crib mattress support level as soon as your baby can stand with assistance, or they can pull themselves into the standing positions. It can be possible in between 8 to 12 months. The lowest level can assure you of the 26 inches requirements to reduce the chance of any physical injury.

Why is it essential to adjust the crib mattress height?

The 19-year study published in the journal US emergency rooms can treat an average of 10,000 zero-to-two-year-olds because of the cribs, so we must be extra conscious about that. Such statistics are eye-opening. Hence, choosing the organic crib mattress while picking the non-toxic bassinet or the non-toxic crib while buying a reputable brand is essential. Sometimes we also want to help caregivers and parents to know when they must lower the crib mattress.

How high should a crib mattress be for a newborn?

As per the safety regulations of the crib mattress height, the ideal size of the crib mattress is 26 inches. It must be in between the top of the crib mattress, which is easily 5.5 to 6 inches thick, primarily depending on your brand.

How high should a crib mattress be for a newborn

When must you change the mattress height?

It mostly happens between 5 to 8 months. Once your baby can pull on its own, you must adjust the mattress to its lowest settings for your baby’s safety.

Why raise the crib mattress?

When you put the crib mattress together, you might need help to have the set at the height of the crib mattress with the right intention. Once you have brought them home, you can realize that the mattress height was less than ideal.

There can be reasons for such specifications; some of them are as under:

1. More Mobility

If you put your baby’s mattress in a low setting before they are born, do not think how difficult it can be to be safe inside. It is best for you if you are a short mama. You can put the mattress on the low setting and soon find yourself leaning entirely over one of your sides of the crib to lay them down.

Hence, moving him to a higher position can make it a safe environment for you and your little one. On the other hand, if you are the mama graced with height, bending over to the crib can be a little painful, especially if you are recovering from the cesarean section. In such a case, raising the crib can make it easier for you to lay your little one down while you are still healing.

2.Baby has reflux

The standard form of reflux is Gastroesophageal reflux disease (GERD), especially in babies who are uncomfortable sleeping on their backs, as laying down flat can allow the acidic stomach fluids to move forth the esophagus.

The moment when the stomach acid reaches the esophagus, it is a painful sensation. It can also cause your baby to spit up or vomit while leaving you with little sleep and long nights.

In the case of infant reflux, when your baby is in the inclined position, it can help you to keep the baby’s stomach down.

3. Congested baby

Mucus and congestion build-up is mainly created by allergies or colds, which can cause your little one to lose the struggle and sleep to breathe throughout the night. Significantly, a safe crib mattress will help you relieve the pressure, which is caused due to mucus build-up, which will allow your baby to sleep and breathe better.

Safety tips for adjusting crib mattresses

You might be surprised to know that most moms want to raise the crib level and increase the mattress angle. You must be curious to know if it is safe. Then the answer is yes, with some of the essential specifications it is. Primarily, it is safe to raise the crib mattress to get the highest setting. Especially if your baby is recently born, on the other hand, if you want to increase the crib mattress to the highest setting when your baby is newly born, as you are getting older, you must reconsider that:

Only some notch must lower your baby’s crib, or it can even be a crack, especially once they can sit up. It mostly happens between 5 to 8 months of age. Once your little one can pull up on its own, you must adjust the mattress to its lowest setting for your baby’s safety.

Safety inclining crib mattress

If your little one has congestion or GERD, you must incline their mattress. Please do not do it with the object on top of the bed itself. Always remember the sleep positioners, pillows, and blankets, which will all create a suffocation risk for your little one. A safer option is to make an incline while placing the items under the baby’s mattress. In addition, you can use speciality blankets, anglers, even towels or pillows, so make a 30-degree or about 6 inches incline for your little one.

You can also place the items under the mattress until you reach the desired angle.

Why is it important to lower the crib mattress height?

Raising the crib mattress can sometimes happen in your little one life when you need to lower it. Your little one is growing, and your crib must be adjusted accordingly. Significantly reducing must be done for safety reasons. Nobody wants their baby to fall out from the crib and on the hard floor below, even the carpeted one.

Transition to a toddler bed

Once your baby reaches around 35 inches, you must transition to the toddler’s bed. Primarily, you can change the mattress, as the regular baby mattress might be too firm for sleeping in. Thankfully, most cribs are designed to convert the one into a toddler bed as your baby grows.

The balance between crib safety and your comfort

Some parents might consider placing the crib mattress support at the lowest setting to be extra safe. It actually might be a bad thing. The possible reason is that you are leaning over and straining over the body to pick the newborn from the mattress. There is a possibility of mishandling and even dropping the newborn, especially when getting them out of the crib. It is especially easy and accessible for you to compromise the child. A unique part of being a modern parent is to learn when there is too much.

Shorter parents

Shorter parents will have a tough time dealing with the height of the mattress, especially when it is a matter of the lowest setting. Raising the crib mattress height can make things easier for you in some ways. You have to avoid compromising several points when considering the child’s safety. However, you can also find out the best baby crib for shorter parents in the market, which is specially made for parents with a low height.

Especially shorter parents can have a stricter time while dealing with the height of the mattress. Moreover, in the lowest setting. Moreover, raising the cribs can have the overall size of the bed, which is 36 inches tall. Mainly they are for the typical height where the shorter mom can bend at the waist.

If he manages to climb out

The reason your baby is falling out of the crib while injuring themselves is horrifying. I hope that such recommendations on the cribs’ mattress heights can minimize the chance of your little one climbing out over the crib’s rails. You must think about them as soon as your child is in a position of standing. Your baby can climb up the crib, and you need to prevent your baby from Climbing Out Of The Crib.

The modern part must think about this ahead of time. Especially if your child falls and crawls, think if they fall in a safe place. Consider this when no one is watching because it can be distracting. mattress height

One of the prime things regarding this is to think if your baby can fall out of the window if it is open. Here are the points that you must consider when placing your child in the crib:

  • Corners of hard furniture
  • Windows
  • Hard floors
  • Elevate the crib mattress

After reading, some of the parent’s recommendations say that you must set aside the mattress support to some height and then the other size on the mattress can be slanted. Do not just read it. Think if it is perfect for you or not. You can place the object under the bed to make it slant. In this way, you can achieve a 30-degree angle. It is about 6 inches difference from back to front.

Suppose the incline has to do something with gastroesophageal reflux disease or congestion through the source. It can disturb the baby’s sleep. Always remember that you do not need to stimulate the elevated surface with the help of towels, crib bumpers, pillows, or blankets, as they can suffocate their babies. Overall, such items are under the mattress.


Generally, you must review the American Academy of Pediatrics material to maximize the safety of the baby crib and the safety of your baby. Overall, it is recommended to consider the recommendations of your experts regarding the baby’s crib.

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