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A smiling child lies on a Newton Baby Bundle 1 BFCM crib mattress with a Newton label. To the left, images display the mattress rolled in a white bag and unrolled flat.
A smiling toddler in pajamas stands on a Newton Baby Kids' Twin Mattress, holding a plush teddy bear overhead. The softly lit room features minimalist decor and neutral tones.
A child in bear-print pajamas hugs a star pillow while lying on the Newton Baby Kids' Twin Mattress. Text below: Temperature regulating for cooler, more comfortable sleep. GREENGUARD Gold certified for peace of mind.
A handheld shower head sprays water onto the core of a Newton Baby Kids' Twin Mattress in a bright bathroom. Text below reads: “The first completely washable kids’ mattress—even the core.”.
The Newton Baby Kids' Twin Mattress is shown with its 3-piece washable core and a rolled cover on a bed frame. GREENGUARD Gold certified, the textured white core and thick, snug cover make cleanups easy and edges smooth.
The Newton Baby Kids' Twin Mattress features a partially unzipped, ultra-breathable white cover that's completely washable. Made in the USA, it’s GREENGUARD Gold certified and trusted by over 2 million families.
The Newton Baby Kids' Twin Mattress, GREENGUARD Gold certified and breathable, measures 76"L x 38"W x 5.5"H and is shown as a white twin-size bed on a light blue background.
A young child lies comfortably on a bed with a Newton Baby Kids' Twin Mattress. Text at the bottom reads: GREENGUARD Gold certified, hypoallergenic, and ideal for asthma and allergy sufferers.
A soft, white drawstring bag with "newton" in green lowercase on the front, ideal for storing your Newton Baby Waterproof Organic Twin Mattress Pad. The rectangular bag closes neatly at the top to keep your pad protected and organized.
A young child with heart-shaped sunglasses and headband smiles on a white bed. Text: Newton Baby Waterproof Organic Twin Mattress Pad—ultra-soft, washable, waterproof protection for kids' beds.
A young child in patterned pajamas stands on a white metal bed frame with a breathable Kids' Twin Mattress by Newton Baby. The bright room features "Kinsley" on the wall and alphabet art above a toy basket.
A young child in pajamas lies on a white house-shaped bed, watching a tablet. The pastel room features paper flowers, string lights, and a Newton Baby Kids' Twin Mattress that’s GREENGUARD Gold certified for safety.
Close-up of Newton Baby’s Waterproof Organic Twin Mattress Pad on a mattress, showing mitered corners and all-around double elastic for a secure fit. Features a green tag and is perfect as a kids twin mattress pad.
A child in a beige knit sweater and blue jeans sits on an adult’s lap, holding a book. Text below reads, “Newton Baby Waterproof Organic Twin Mattress Pad—machine washable for easy cleanups when accidents happen.”.
A close-up shows the Newton Baby Waterproof Organic Twin Mattress Pad’s organic cotton surface, washable waterproof lining, universal fitted skirt, GREENGUARD Gold badge, and plastic waste reduction achievement.
A child lies on their side on a plain white mattress with wooden bed rails. Text below reads: Newton Baby Waterproof Organic Twin Mattress Pad—ultra breathable for less risk of suffocation and overheating.
A smiling toddler in printed pajamas lies on a white mattress. Text below reads: The Newton Baby Kids' Twin Mattress is GREENGUARD Gold certified and firm to support healthy growth and spinal alignment.
A smiling child lays on a Newton Baby Bundle 1 BFCM mattress with a textured white cover and green tag. Also shown: a folded mattress, a white Newton Baby carrying bag, and a close-up of the mattress corner.
A white crib mattress with a partially unzipped cover and a matching white drawstring storage bag, both featuring Newton Baby branding, are shown on a white background. Product: Bundle 1 BFCM by Newton Baby. SKIP
A white Newton Baby Bundle 1 BFCM crib mattress with a removable cover is shown lying flat, with its carrying/storage bag placed above it.
A Newton Baby Bundle 1 BFCM bag is placed beside a white rectangular item.
A smiling girl lies on a white Newton Baby mattress from the Bundle 1 BFCM. Below, insets display the mattress folded flat and packed in a white Newton Baby carrying bag.
A child lying on a Newton Baby Bundle 1 BFCM mattress.
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Kids' Twin Mattress + Waterproof Organic Mattress Pad

Save $170 off this bundle for a limited time only!

From bedtime stories to sleepovers, this bundle gives your growing child the comfort, cleanliness, and peace of mind that Newton is known for. Pair the Kids’ Twin Mattress with the Waterproof Organic Twin Mattress Pad for the perfect combination of breathability and protection.

Kids’ Twin Mattress — $499.99 $349.99

  • The only kids’ mattress that’s washable from cover to core
  • Ultra-breathable design keeps sleep cool and comfortable
  • Supportive and pressure-relieving for growing bodies
  • Hypoallergenic and non-toxic for a healthier sleep environment
  • GREENGUARD Gold Certified and free of foam, glue, and latex

Waterproof Organic Twin Mattress Pad - $79.99 $59.99

  • Breathable, soft organic cotton top layer
  • 100% waterproof protection for stress-free cleanups
  • Machine washable and dryer-friendly for easy care
  • Fits securely on the Newton Kids’ Twin Mattress

The perfect pair for cleaner, safer, more comfortable sleep—because big kids deserve Newton peace of mind, too.

30% off Kids' Twin Mattress + 25% off Twin Waterproof Pad discount code applied below and in cart. Only one discount per item permitted.

Ships FREE* in 2-4 business days

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Frequently Bought Together
Baby2Baby

Your donation helps Baby2Baby continue providing basic essentials including diapers, formula, safe sleep spaces and more to children they serve across the country.

Your donation will help us provide diapers, safe sleep spaces, and more essential items to children through the non-profit organization Baby2Baby.

The Reviews Are In

We're providing peace of mind — for bedtime and beyond.

Medina S.

A baby lying on a white newton mattress, playfully resting his hands on his face, looking adorable and content.

“I [worried] about three sections, but you can’t notice them at all. My little one loves it! Loved the crib mattress and now love the twin!”

Sabrina M.

A child relaxes on a luxurious Newton mattress, captivated by the book "The Wonderful Things You Will Be."

“Surpassed all my expectations. Our son doesn't wake up sweating anymore and he seems to fall asleep faster too. ”

Amanda E.

A baby girl sitting on a newton mattress with a delicate white canopy, smiling and surrounded by soft pillows.

“Love this mattress, wish you sold a king-sized one!”

Fernanda B.

“I love it! Super soft, high quality and my son sleeps better when the cover is on the mattress!”

Brooke W.

“It was a no brainer to turn to Newton when we transitioned our son to a twin. Nice and cooling and gives him the same comfort as his crib.”

Specs

Kids' Twin Mattress

  • Ultra-breathable, washable & recyclable Wovenaire® Core arrives in 3 pieces for easy cleaning and assembly
  • Removable, machine washable cover
  • GREENGUARD Gold Certified

Fits all Twin Mattress frames

  • Twin Mattress measures 75” x 38” x 5.5” (LxWXH)
  • Use sheets with an 8" pocket for a snug fit
  • Low profile makes it ideal for bunk beds and trundle beds!

Mattress Includes

  • Breathe-thru outer cover - soft, single-layer eyelet cover made from cushiony spacer material (polyester)
  • Viscose liner (sewn to outer cover) - safe alternative for exceeding rigorous federal flammability standards
  • Wovenaire® core - made of safe, food-grade polymer (same material as a yogurt container!)

Waterproof Organic Twin Mattress Pad

  • Organic cotton surface with waterproof lining
  • Pairs perfectly with our Kids’ Twin Mattress and can fit ANY twin mattress
  • Ideal for potty training
  • Extra batting/cushion for a layer of comfort
  • 39” x 75” with a 12” skirt

Testing & Certifications

Kids' Twin Mattress

GREENGUARD Gold Certified

  • Newton products have been independently tested and certified by UL to meet GREENGUARD Gold standards for the lowest chemical emissions. The standards are among the most rigorous in the world to test for the lowest measurements of chemical emissions such as VOCs, and certifies that Newton products help to promote a healthier indoor air quality. With Newton, you can rest assured your child is sleeping safely.

Waterproof Organic Twin Mattress Pad

  • Waterproof Lining is OEKO-TEX certified
  • GREENGUARD Gold Certified - Our mattress pad is independently tested
    and certified for low chemical emissions, exceeding the highest
    industry emissions safety standards to help improve indoor air quality.


Shipping & Delivery

  • Ships FREE* in 2-4 business days

Kids' Twin Mattress

  • Ships FREE* in 2-4 business days
  • Ships via FedEx
  • Transit time: 3-7 days once shipped
  • Free Shipping in the contiguous 48 states
  • $111 shipping fee to Canada plus taxes (GTS/HTS calculated at checkout based on zip code)
  • Shipping fee to HI & AK calculated at checkout based on zip code

Waterproof Organic Twin Mattress Pad

  • Ships FREE* in 2-4 business days
  • Ships via FedEx
  • Transit time: 3-7 days once shipped
  • Free Shipping in the contiguous 48 states
  • Shipping fee to HI & AK calculated at checkout based on zip code
  • $25 shipping fee to Canada. Taxes (GTS/HTS) calculated at checkout based on zip code

Returns & Exchanges

Kids' Twin Mattress

RETURN / EXCHANGE POLICY

  • Risk-free, Easy Returns with our 100-night trial, money-back guarantee

WARRANTY POLICY

  • Wovenaire® Core - Limited 10-year warranty
  • Mattress Cover - Limited 2-year warranty

Waterproof Organic Twin Pad

Return / Exchange Policy

  • Risk-Free returns
  • 30 days in original packaging

Warranty Policy

  • 2-Year Limited Warranty

Care & Use

Kids' Twin Mattress

Washing the Cover:

  • Zip closed prior to wash & dry
  • Machine wash cold, alone, with detergent
  • To refresh, add ½ cup baking soda to wash
  • Tumble dry low thoroughly on low heat setting
  • Do NOT hang dry
  • Replace If Damaged - Contact Customer Care For Assistance

Washing the core:

  • Hand rinse cold (in shower or tub)
  • Use mild detergent
  • Shake then air or fan dry
  • Avoid heat or direct sun
  • Spot clean as needed

Waterproof Organic Twin Mattress Pad

  • Machine wash cold on gentle cycle.
  • Tumble dry on low. Do not iron.
  • Only non chlorine bleach when needed. Shrinks to fit.

Assembly

Kids' Twin Mattress

  • Unroll cover and set top cover aside
  • Lift side walls of bottom cover into a box-shape
  • Fit all 3 core segments inside, making certain that all
    edges (especially the top edges) align flush against each other (no
    bumps or spaces in between)
  • Place top cover over assembled bottom cover and core
  • Zip closed, tucking front flap in between core and side walls

FAQ

Kids' Twin Mattress

Will the Kids' Twin Mattress fit my bed frame?

The mattress is designed to fit all traditional twin bed frames. It measures 38” x 75” x 5.5” ( LxWxH).

Are there flame retardants?

While many of our competitors use toxic chemical fire retardants, we do not. Instead, we use a layer of viscose material sewn into our cover. Viscose material is made from reconstituted wood pulp. We quilt this material into our mattress covers for a safer, non-toxic solution.

Is the mattress comfortable for my child?

Our Kids' Twin Mattress is made with the same technology and comfort that Newton is known for in our crib mattresses. Many parents tell us their little ones start sleeping better from the first night, and we couldn’t be happier. Try it yourself risk-free with our 100-night trial.

Can I lay on this with my child?

We know how bedtime can be during the toddler and preschool years (“Just one more book?”). That said, this mattress is specifically designed for kids up to 100lbs. We don’t recommend that adults sleep on the mattress as it could impact the integrity of our patented Wovenaire® core. So snuggling together on the kids' mattress for one more book at bedtime is fine; however, sleeping for a longer duration on it is not recommended for parents.

Waterproof Organic Twin Mattress Pad

Does the pad offer cushion/comfort/padding?

It sure does! In addition to a completely waterproof lining, our mattress pad features an organic cotton surface and a comfy cushion to provide additional padding for your big kid.

Can I use a sheet?

We recommend using a cotton sheet for the most comfortable and breathable sleep for your child.
A woman and two children are in a cozy room with a bright pink newton mattress, creating a warm and inviting atmosphere with over the image image label of "100 Night Free Tial"

100-Night Free Trial

Try any Newton mattress, bassinet, or travel crib for 100 nights risk-free to decide if it's right for you and your baby. If either of you aren’t happy, simply return at our expense for a full refund.

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