Why Is My Baby Chewing on Their Crib? 7 Reasons & What to Do

If you've walked into your baby's room and discovered a collection of tiny teeth marks along the crib rail, you're probably wondering the same thing:

Why is my baby chewing on their crib?!

First, you're not alone.

Babies love to put things in their mouths, and when teething enters the picture, that instinct can become even stronger. Suddenly the crib rail is apparently more interesting than every perfectly good teething toy you own.

There are a few reasons babies chew on crib rails—and there are some simple things you can do to help.

Why Is My Baby Chewing on Their Crib?

1. Your baby may be teething

This is one of the most common reasons.

When teeth are moving through the gums, babies often look for something to bite or chew. The pressure of chewing can feel soothing on tender gums.

The American Academy of Pediatrics notes that increased chewing and putting objects in the mouth are common signs associated with teething.

And unfortunately, the crib rail happens to be:

• Right at mouth level

• Easy to grab

• Firm enough to push against

• Always available

From your baby's perspective, it's basically a built-in teether.

2. Chewing is how babies explore

Babies don't experience the world the same way adults do.

They use their mouths to explore textures, shapes, surfaces and resistance.

That's why your baby may happily chew on a toy for five minutes—and then decide your shoe, the coffee table or the crib is much more interesting.

Mouthing is a normal part of early development.

So crib chewing isn't necessarily a sign that something is wrong. Your baby may simply have discovered an object that provides an interesting sensory experience.

3. The crib rail gives them something firm to bite

Different babies prefer different sensations.

Some like soft silicone. Some prefer textured surfaces. Others want something firm that they can really bite down on.

A wooden crib rail provides resistance, which may be particularly appealing to a baby with sore gums.

That doesn't mean the crib itself is a good teething toy, though.

It's worth giving your baby an appropriate alternative that's specifically designed for chewing.

4. Your baby has discovered that chewing feels good

Once a baby discovers that something feels satisfying, they tend to repeat it.

And repeat it.

And repeat it.

That's how babies learn.

If chewing the crib rail feels soothing or interesting, your baby may turn it into a habit—especially during quiet moments in the crib.

You may notice it happening:

• First thing in the morning

• Before naps

• Before bedtime

• During nighttime wake-ups

• When your baby is bored or restless

5. They're practicing their new teeth

Once those first teeth appear, your baby has a whole new sensory experience happening inside their mouth.

They may be fascinated by their teeth and want to experiment with biting different surfaces.

This is another reason you may suddenly see more chewing—even if your baby seemed perfectly happy with their teething toys before.

Is It Normal for a Baby to Chew on Their Crib?

Yes, crib chewing can be a normal behaviour, particularly during the teething and exploratory stages.

But normal doesn't mean you should ignore it.

You want to make sure the crib remains in good condition and that your baby isn't chewing on a damaged, splintered or deteriorating surface.

Regularly inspect your crib for:

• Chipped or peeling paint

• Splintered wood

• Cracked or damaged components

• Loose hardware

• Broken slats

• Any other damage

The CPSC recommends checking cribs regularly and not using a crib with missing, damaged or broken parts.

If you notice damage, follow the crib manufacturer's instructions for replacement parts or repair.

How Can I Stop My Baby From Chewing on the Crib?

Here's the tricky part:

You probably aren't going to convince a determined teething baby to simply stop chewing.

Instead, think about giving them a better option.

Give them something appropriate to chew

If your baby is looking for pressure and texture, offer an age-appropriate teething toy designed specifically for mouthing and chewing.

You may need to try different textures to find the one your baby prefers.

Some babies love soft, flexible silicone.

Others want something textured.

Some want a toy they can hold and manipulate while they chew.

There's no universal favourite.

Your baby gets a vote.

Redirect instead of constantly saying “no”

If your baby starts chewing the crib, try redirecting them to an appropriate teething toy.

You don't need to make it a battle.

Simply offer an alternative and let them explore it.

Over time, your baby may begin choosing the alternative on their own.

Give them plenty of sensory opportunities during the day

Babies who love mouthing and chewing are often enthusiastic sensory explorers.

Age-appropriate play involving different textures, shapes and objects can give them plenty of opportunities to explore.

And yes, some of those objects will still end up in their mouths.

That's part of the job description.

What About a Crib Teething Rail?

If your baby is repeatedly chewing the top rail of the crib, a purpose-designed crib rail teething product may be an option.

But this is where it's important to pay attention to the design.

A crib rail product should not turn the crib into a padded or cluttered sleep environment.

The CPSC distinguishes certain top-rail-only crib rail covers from crib bumpers, while products that cover crib sides or slats may fall under the federal crib bumper ban.

Always follow the product's installation and use instructions and your crib manufacturer's guidance.

And never add loose pillows, blankets, stuffed items or padded bumpers to an infant's sleep space.

What NOT to Do

When your baby has decided that their crib is their favourite chew toy, it can be tempting to get creative.

But skip the DIY solutions that involve adding loose or padded materials to the crib.

Do not use pillows, blankets, stuffed animals or padded crib bumpers to cover the crib rails.

These products can create serious sleep-safety risks, and padded crib bumpers are banned in the United States.

Instead, focus on keeping the sleep environment clear and addressing the chewing behaviour with an appropriate teething option.

Could Crib Chewing Mean Something Other Than Teething?

Absolutely.

Teething is a common reason, but babies chew for lots of reasons.

Your baby might be:

• Exploring

• Self-soothing

• Looking for sensory input

• Bored

• Tired

• Practicing biting

• Going through a particularly active stage of oral development

That's why it's useful to look at the whole picture.

If your baby is otherwise happy, eating and drinking normally, developing as expected and simply seems obsessed with chewing, it's often just another stage of babyhood.

If your baby seems unwell or you have concerns about their symptoms, talk with your healthcare provider.

What If My Baby Is Chewing the Crib at Night?

This can be particularly frustrating because it can turn bedtime into:

Sleep → chew crib → wake up → chew crib → repeat.

If your baby is teething, nighttime can be challenging because there are fewer distractions and your baby's discomfort may be more noticeable.

Before bed, offer plenty of age-appropriate opportunities for chewing and sensory play.

You can also make sure your baby has an appropriate teething option available during awake periods.

And remember that not every nighttime wake-up is caused by teething.

Babies wake for all sorts of reasons.

Sometimes it's teething.

Sometimes it's a developmental leap.

Sometimes they just woke up and decided 3:17 a.m. was an excellent time to party.

When Should I Be Concerned?

Most crib chewing isn't an emergency.

However, take a closer look if:

• The crib has become damaged

• Your baby has access to splintered or broken material

• You see peeling paint or damaged finishes

• Your baby has a mouth injury

• You suspect your baby swallowed part of the crib

• Your baby seems unwell or is experiencing symptoms you can't explain

If you think your baby has swallowed a piece of damaged material or has been injured, seek appropriate medical advice promptly.

The Bottom Line

If your baby is chewing on their crib, you're probably witnessing a combination of teething, sensory exploration and a very convenient crib rail that's sitting directly at mouth level.

It's frustrating.

It's messy.

And those tiny teeth can leave surprisingly impressive evidence behind.

Instead of trying to stop your baby from chewing altogether, give them appropriate opportunities to chew and explore while keeping their sleep environment safe and uncluttered.

And if the crib rail is becoming a regular target, inspect the crib regularly and look for an appropriate solution specifically designed for the top rail.

Because apparently, your baby has decided the crib is a five-star restaurant.

And they're open 24 hours.

Frequently Asked Questions

Why does my baby chew on their crib?

Babies may chew on their crib because they're teething, exploring their environment, looking for sensory input or simply because chewing feels satisfying.

Is it normal for babies to bite crib rails?

Yes. Crib chewing can be a common behaviour during teething and the oral-exploration stage. However, the crib should be inspected regularly for damage.

How do I stop my baby from chewing their crib?

Rather than trying to stop chewing completely, redirect your baby toward an age-appropriate teething toy designed for chewing and make sure the crib remains in good condition.

Can teething cause babies to chew their crib?

Yes. Increased chewing and mouthing are common behaviours associated with teething.

Can I put a crib bumper on the crib to stop chewing?

No. Padded crib bumpers should not be used in an infant's sleep environment, and they are banned in the United States.

Should I worry if my baby damages the crib by chewing it?

Inspect the crib for splinters, chipped or peeling finishes, cracks, broken components and loose hardware. Follow the crib manufacturer's instructions if damage is found.