You could try a sleep sack, otherwise he will probably figure it out on his own. Answer from Ashamed_Isopod_1036 on reddit.com
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Amazon
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Amazon.com: Baby Crib Bumpers - Baby Crib Bumpers / Baby Bedding Accessories: Baby Products
Discover Crib Bedding Bumpers on Amazon.com at a great price. Our Nursery Bedding category offers a great selection of Crib Bedding Bumpers and more. Free Shipping on Prime eligible orders.
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Amazon
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Amazon.com: Crib Bumpers
Discover breathable mesh crib liners that promote airflow and prevent limb entrapment. Find soft, padded options to protect your little one.
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Target
target.com › s › baby+cribs+bumper+pads
Baby Crib Bumper Pads
Shop Target for baby cribs bumper pads you will love at great low prices. Choose from Same Day Delivery, Drive Up or Order Pickup plus free shipping on orders $35+.
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BreathableBaby
breathablebaby.com › home › crib bumpers and liners
Crib Bumpers and Liners – BreathableBaby
Breathable™ Mesh Liner for Full-Size Cribs, Classic 3mm Mesh, White (Size 4FS Covers 3 or 4 Sides)
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Lambs & Ivy
lambsivy.com › home › crib bumpers
Baby Crib Bumper Pads by Lambs & Ivy - Boy, Girl & Neutral Styles
Lambs & Ivy baby crib bumper pads are the perfect way to protect your baby boy or baby girl from bumps and bruises while in their crib. Shop our wide selection of colors and styles such as pink, blue, purple, gray, beige, brown, etc. Numerous themes and animals available.
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Reddit
reddit.com › r/mommit › hey moms, is there a safe alternative to crib bumpers?
r/Mommit on Reddit: Hey moms, is there a safe alternative to crib bumpers?
January 10, 2022 -

My son started standing in his crib and yesterday I saw his legs slip through the slats on the side as he fell sideways, I was SURE he broke his leg (was totally fine).

Just need to know what I can use to prevent this in the future.

Editing to add I’m asking for an ALTERNATIVE to bumpers. I will not be using bumpers.

I have 2 sleep sacks already so it seems that’s the best route. Thanks guys!

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Walmart
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Round Crib Bumper Pad
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Lambs & Ivy
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Crib Bumper Clearance | Order a Crib Bumper for Sale Online - Lambs & Ivy
Shop our crib bumper sale online today and save! Our crib bumper sale offers safe and colorful bumper options for your baby's crib. Order your clearance crib bumper for sale from Lambs & Ivy.
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Best Products
bestproducts.com › parenting › baby products › here’s the deal with crib bumpers and bumper alternatives
7 Best Crib Bumper Alternatives in 2022- Mesh Crib Liners & Rail Covers
February 7, 2022 - Jacobsen, who works with families ... and choose nothing at all, but for parents who want to use a crib bumper, mesh is the only way to go," she says....
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Amazon
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Best Sellers in Baby Crib Bumpers
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Top answer
1 of 3
20

The AAP says never use crib bumpers:

Crib bumpers (or bumper pads) may seem as though they can help protect babies from drafts and bumps, but they should not be used in cribs. There is no evidence that bumper pads can prevent serious injuries, and they pose a risk of suffocation, strangulation, or entrapment. In addition, older babies can use them for climbing out of the crib.

Source: Choosing a Crib

2 of 3
5

I originally didn't want to write this as a separate answer because swbarnes2's answer is perfect. However, I did want to add this extra info.

Without a crib bumper the worst-case nightmare scenario, that is almost impossible is a broken arm or leg without a crib bumper (and I have never heard of that happening, it would be a freak accident). With a crib bumber the worst case scenario is suffocation and I hear about that all the time.

The only time a crib bumper is appropriate is when the child's head can fit through the rails of the crib because of a deformity of the child. Even then, it's better to stick with other forms of sleep like maybe a flat crib matress on the floor instead of in a crib. This example child would be a very odd exception and not the rule. To be clear if there is no deformity, and the childs head fits through the slats then it's time to go get a new crib.

For most everyone the answer is no, crib bumpers are not safe, and should be avoided. There is a very small population of children that may need a crib bumper due to circumstances, but even then other sleeping setups should be attempted first.

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Amazon
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Amazon.com: Crib Bumper
Discover breathable mesh crib bumpers that keep little limbs safe without restricting airflow. Find versatile options to fit your crib and nursery style.
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Amazon
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Amazon.com: Crib Bumper Pad: Baby Products
Best Sellerin Crib Mattress Protection · 10K+ bought in past month · Exclusive Prime price · Safer chemicals · See options · 500+ bought in past month · Save 5% on 2 select item(s) Small Business · 1 Count (Pack of 1) 200+ bought in past month · Small Business ·
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Halo Sleep
halosleep.com › home › crib liners
Crib Liners
Mesh crib liners are designed to be safer because they are breathable and reduce the risk of suffocation, unlike padded crib bumpers which have been linked to suffocation hazards and are not approved by AAP Guidelines.
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Cotton Tale Designs
cottontaledesigns.com › collections › bumpers
Bumpers | Cotton Tale Designs
Bumpers are meant to protect your baby from bumps and bruises during the earliest stages of their development. Each of Cotton Tale Designs’ four-sectional bumpers can be safely tied to the crib without restricting airflow.
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Home of Wool
homeofwool.com › shop › baby & mom › nursery › wool bumper
Wool Crib Bumper – Safe, Hypoallergenic & Chemical-Free | Home of Wool
October 1, 2025 - Designed with practicality in mind, the machine-washable baby bumper comes with a removable cover that makes care simple and stress-free. Every bumper is part of our handmade baby bedding line, customizable in tie placement, fabric, and size to suit your nursery perfectly. Yes, the Home of Wool hypoallergenic crib bumper is made without synthetics or chemicals.
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Wayfair
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Crib Bumper Pads | Wayfair
Shop Wayfair for the best Crib Bumper Pads. Enjoy Free Shipping on most stuff, even big stuff.