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When to Flip Crib Mattress: The Definitive Guide

When to Flip Crib Mattress: The Definitive Guide

Hey there, exhausted parent. Yes, we're looking at you, the one running on caffeine and love. As you continue the quest for the Holy Grail of baby sleep, you're faced with another question: When do you flip that crib mattress?

You might be thinking that it's just a hunk of foam or springs, but it's actually a key player in the sleep (or non-sleep) saga. This guide breaks down everything you need to know about when to flip that crib mattress for maximum comfort, safety, and hopefully, a little more shut-eye.

Table of Contents

When to Flip Crib Mattress to Softer Side

So, you're keen on making that mattress a bit softer for your little angel? Let's talk timing:

The Growth Spurts

One possible cue for flipping to the softer side is during or after a significant growth spurt. Often, babies start to need more comfort as they grow, so keep an eye on their reactions during naptime and bedtime.

Mood Signals

Is your baby suddenly fussier during sleep time or unwilling to lay down? It might be a signal that they are uncomfortable and it’s time for a flip.

Consult the Manufacturer’s Guide

You should check the guidelines and age recommendations provided by the manufacturer. They usually give good advice on the right time to flip.

When to Flip Crib Mattress to Toddler Side

For those of you with a toddler who has graduated from baby antics to full-blown “I do it myself” independence, flipping that mattress might be just the thing to encourage more restful nights.

Age is More than a Number

Generally, it's recommended to flip the mattress when your baby transitions to toddlerhood - around 12 to 18 months. But remember, each child is different.

Consider Mobility

Is your toddler climbing or starting to stand? It might be the perfect time to flip the mattress, as the softer side can offer more comfort for their active bodies.

Examine Wear and Tear

If you start to notice that the firm side is getting worn or saggy, this could be a good indication that it’s time to use the flip side.

The Science of Crib Mattress Firmness

Firmness in a mattress isn't just about comfort - it's also about safety. A firmer mattress reduces the risk of Sudden Infant Death Syndrome (SIDS). So when you’re flipping, keep safety in mind as much as comfort.

The Ideal Firmness Level

The firmer side is generally best for infants to support their growing bones and to minimize the risks mentioned above.

How to Test Mattress Firmness

Press your hand into the mattress and observe how quickly it regains its shape. A quicker response time usually signifies a firmer mattress.

Check out Puffy mattress reviews from real customers and see how we compare with other brands.

Can You Flip Any Crib Mattress?

Not all mattresses are flippable. Here's how to tell:

Dual-sided Mattresses

Look for models that are explicitly described as dual-sided, having both a firmer infant side and a softer toddler side.

One-sided Mattresses

Some mattresses are designed to be used on one side only. Flipping a one-sided mattress could compromise its structural integrity and safety features.

Common Myths About Flipping Crib Mattresses

Yes, myths abound even in the realm of baby sleep.

Flipping Too Soon is Better

Actually, no. Flipping the mattress too soon can compromise your baby’s safety and spinal development.

Flipping Extends Mattress Life

Not necessarily. Mattresses are designed to be used a certain way, and flipping them arbitrarily could do more harm than good.

Use our store locator to find the closest furniture or mattress store near you and feel the cloudlike comfort of our Puffy Mattress in person.


Flipping a crib mattress isn't just a random task to check off your parenting to-do list; it's an important action that can affect your child's comfort and safety. So the next time you're up in the wee hours, contemplating the mysteries of infant sleep, consider whether it's time for the Great Mattress Flip. Because anything that might get us all a few more minutes of sleep is worth exploring, right? Happy parenting!

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