Newton® Mattress or SafeSleep® Crib Mattress

Comparing The Newton® Mattress and The  SafeSleep® Crib Mattress Side by Side.

Compare the Top Two Breathable Crib Mattresses

Newton Crib Mattress

Newton® Breathable Crib Mattress

5.5″ High

Price:  $299.99 – $349.99

Newton® believes “What’s inside matters most.” 

SafeSleep® Breathe-Through Crib Mattress

5″ High

Price:  $299.00


SafeSleep® believes, “What’s not inside matters most.”

What’s Inside The Newton® Mattress and What’s Not Inside The SafeSleep® Crib Mattress…

Plastic Core

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No Fill or Core

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The Newton® mattress contains a spongy plastic core made up of food grade polymers which is a plastic.  The company claims it is made from the same plastic as yogurt cups. 

The SafeSleep® crib mattress has no fill or core of any kind.  By design, it is filled with constant fee flowing air.  This means your baby is not sleeping on plastic.

Newton Crib Mattress

Newton® Has a Food-Grade Polymer Plastic Core

SafeSleep® Has No Core, Only Free Flowing Air

What’s On The Surface of The Newton Mattress® and The SafeSleep® Crib  Mattress

Both the Newton® mattress and the SafeSleep® crib mattress use the same type of 3D open-weave fabric for the mattress cover.  

The Newton® mattress has an outer cover covering the entire mattress core by zipping the top of the cover to the sides of the cover around the entire perimeter – 360 degrees.

The SafeSleep cover (called a topper) is suspended over the mattress base.  The topper slides over two metal bars pulling it taut and holding it in place by zipping the underside of the topper from right to left.  The mattress base has solid wood sides with cutouts.

Newton Baby Mattress

Newton® 3D Open-Weave Fabric


SafeSleep® 3D Open-Weave Fabric

No Quilting

Peeling Back The Layers of The Newton® and SafeSleep® Crib Mattresses 


The Newton® waterproof mattress has an added layer of a viscose, adding waterproofing to the crib mattress.  Viscose is a semi-synthetic material used in upholstery.  It’s derived from wood pulp, which is treated and spun into yarns to make fabric.

Even though the viscose waterproofing cover on the Newton® baby mattress appears to be light and breezy, this synthetic fiber, which is water-repellent, tends to allow sweat to build up, causing discomfort and irritation. 

The SafeSleep® mattress topper has a nylon netting under the 3D open-weave fabric to offer stability and extra firmness to the topper.  The 3D fabric and netting are sewn together making it easily removable for washing. 

More importantly, it does not cause heat build up.  In contrast to the Newton® baby mattress, the SafeSleep® allows natural evaporation of heat and moisture significantly reducing sweating and irritation.

Newton baby Mattress

Newton® Viscose Waterproofing Layer

SafeSleep® Nylon Netting Underlay

The additional viscose layer on the Newton® baby mattress must be removed separate from the 3D cover.  They are two separate covers with one overlaying the other.  Newton® warns consumers not to air dry or allow the viscose layer to remain damp to avoid an unpleasant odor.

Viscose production is chemical-heavy.  Toxic chemicals used in the production of viscose include sodium hydroxide (caustic soda), and sulphuric acid. These chemicals are known to pollute the environment.  

The SafeSleep® mattress has no waterproofing fabrics or chemicals.  Instead, the SafeSleep® allows liquids to quickly pass through the topper and land on the bottom of the mattress base away from your sleeping baby.  This feature gives the SafeSleep® crib mattress additional marks for safety.

If your infant spits up in the middle of the night, parents can rest assured their baby isn’t lying in pooled liquids.

Washing The Newton Mattress® and The SafeSleep® Crib  Mattress – Big Difference!

Both the Newton® mattress and the SafeSleep® mattress are 100% washable.  However, there is a significant difference in the level of difficulty required! The only washing convenience the Newton® and SafeSleep® crib mattresses shares is a removable cover that is easily machine washed.

The Newton® mattress must be lifted out of the crib to remove the cover, or covers if you have the Newton® waterproof mattress.

The SafeSleep® mattress easily slides off the locking bars after lifting the bars and unzipping the topper from left to right.

Now For The Big Difference ~ Ease of Cleaning!

The Newton® baby mattress requires lifting it out of the crib for a bath or shower.

Takes 5-6 hours to dry.

No Need to lift the SafeSleep® crib mattress from your crib.  Simply wipe it down while in the crib.

Dries in seconds, not minutes or hours.

Newton Baby Mattress

Washing The Newton® Crib Mattress

Washing The SafeSleep® Crib Mattress

The plastic core of the Newton® baby mattress is stiff and rigid.  Consequently, it’s not machine washable.  Instead, the manufacturer recommends washing the roughly 52 inches by 28 inches rigid plastic core in a bathtub.  An average bathtub is 45 inches long by 22 inches wide.  Spraying the Newton® mattress down in a shower is another option.  Both methods require lifting the wet plastic and repositioning to completely clean.

Now that you have washed the plastic core of the Newton® mattress, get ready to wait for a lengthy dry time.  It takes 5-6 hours to dry.  You want to make sure it is completely dry before putting the cover back on to prevent mold.  

The one-piece cover of the SafeSleep® crib mattress is easily washed in a conventional wash machine and dryer.  The cover dries in 5 minutes on a medium dryer heat setting.  

The base of the SafeSleep® is easy to wipe down with a damp cloth with a mild soap to disinfect.  The base requires no lifting out of the crib ever.  And, it dries in seconds. The SafeSleep® is designed to never need a trip to the bathroom.  We consider this another added safety benefit since  Streptococcus, e. coli and other pathogens are lurking in every part of our bathrooms. Who wants to chance washing your baby’s mattress in a bathroom full of pathogens?

The Science and Testing of The Newton® Mattress and The SafeSleep® Mattress

Both the Newton® mattress and the Safe Sleep® mattress reduce suffocation risks.  The truth is most crib mattresses reduce suffocation risks if they are firm and do not allow a baby’s face to compress.  This is the reason the American Academy of Pediatrics (AAP) recommends a “firm” crib mattress.  

The real issue is rebreathing CO2 (carbon dioxide) which is a lesser-known type of suffocation. The AAP Safe Sleep Task Force relies on the hypothesis of rebreathing of carbon dioxide as a likely reason for unexpected infant deaths.  Crib mattresses containing fiberfill, loose cores, quilted surfaces, and even crib sheets have all been shown to trap harmful carbon dioxide.   Therefore, the AAP strongly encourages parents to place their infants on their back for every sleep.

Newton baby Mattress

Newton® Crib Mattress 


SafeSleep® Crib Mattress

The Newton® mattress uses quilting on their cover.  Even though the Company describes it as adding additional comfort, the AAP warns against the use of quilted covers and pads because they are known to trap harmful CO2.

Newton®’s waterproof mattress is questionable when it comes to CO2 retention.  According to Dr. James Kemp, a pediatric pulmonologist at St. Louis Children’s Hospital, crib mattresses with porous interiors might actually trap carbon dioxide.  He points out that a mattress filled with tea tree bark made in Australia in the 1980s and ’90s and marketed as breathable turned out to increase the risk of SIDS, and according to Kemp’s stud, allowed more rebreathing of CO2. 

The SafeSleep® mattress has no waterproofing layer.  The only thing between a baby and fresh oxygen is a 1/8 inch open-cell topper.  Scientific testing on the SafeSleep® shows CO2 is gone from the surface before a baby takes in their next breath of air, eliminating the risk of harmful CO2 rebreathing. 

An infant takes a breath every 1-2 seconds.  Carbon dioxide is gone on the SafeSleep® crib mattress in less than ½ a second

Now you can decide if what is inside the Newton® crib mattress is most important, or what isn’t inside the SafeSleep® crib mattress is most important.  

Your baby will spend more than 70% of their first year in their crib sleeping on their crib mattress.  What they sleep on is an important decision.