Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress
Kids’ Twin Mattress

Kids’ Twin Mattress


100% breathable and washable twin mattress.

Introducing the cleanest kids’ mattress on the market. Newton is the first completely washable twin-sized mattress — you can even wash the core! Utilizing the same patented Wovenaire® technology as our award-winning crib mattress, it offers firm support for growing bones and the perfect transition from your crib mattress — guaranteed. Also ideal for potty training, asthma, and allergy sufferers. Includes a soft, airy, machine-washable cover.

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Frequently Bought Together

100% Hypoallergenic

100% Hypoallergenic

Easily wash away dust mites and allergens. Ideal for asthma and allergy sufferers.

Completely Washable

Completely Washable

Washable cover + the ONLY kids’ mattress with a washable core. Perfect for potty training!

Better Sleep for Big Kids

Better Sleep for Big Kids

Optimal levels of comfort, air circulation and firm support for growing bones.

Kids’ Twin Mattress Breakout 1 2 3 4

Kids' Mattress

  • 1

    The Only 100% Washable Kids’ Mattress

    Perfect for potty training! Designed to bring clean, hypoallergenic, lasting comfort to the big-kid bed.
  • 2

    100% Breathable Cover

    Extra plush, ½" thick cushiony cover is fully breathable for a cooler night’s sleep — and is machine washable.
  • 3

    Wovenaire® Core

    90% air, 10% food-grade polymer and more breathable than leading organic, foam and coil mattresses. Provides optimal firmness for your not-so-little one.
  • 4

    GREENGUARD Gold Certified

    Our mattress is independently tested and certified for low chemical emissions, exceeding the highest industry emissions safety standards to help improve indoor air quality.

The Reviews Are In

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

Haley Review

"Extremely easy to assemble and take apart to wash. My daughter kept laying on it and saying "cozy" because it is truly such a comfortable and quality mattress."

Megan R Review

"Aside from the safety aspects of the mattress, it's extremely easy to assemble. It’s super lightweight for a twin bed & the cover is very easy to get on and off when it’s time to wash. I think Newton has outdone themselves with this mattress!"

Leslie K. Review

"He slept great, woke up happy and ready to play. I rested a bit easier knowing that the transition was much less painful than I had ever anticipated."

Sabrina Review

"So far, it's surpassed all of my expectations. Our son doesn't wake up sweating anymore, and he falls asleep faster too! I wish we knew about Newton earlier!"

Vivian M. Review

"Great mattress for my daughter. Fits perfectly in her twin bed frame and great quality. I love that the entire thing can be washed/cleaned."

Product Details

  • Specs

    • 100% breathable Wovenaire Core
    • Removable, machine washable cover
    • Core arrives in 3 pieces and cover ships separately. Easy cleaning and assembly.
    • Greenguard Gold Certified
    • Twin Mattress measures 38” x 75” x 5.5”
    • Use sheets with an 8" pocket for a snug fit
    • Low profile makes it ideal for bunk beds and trundle beds!
  • Testing & Certification

    Newton Baby 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.

  • Shipping & Delivery


    • 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
  • Return & Exchanges

    Return Policy

    • 100-night trial with a full money-back guarantee.

    Warranty Policy

    • 10-year limited warranty
    • Accidental Coverage available with Mulberry
  • Care & Use

    Washing the Cover:

    • Unzip 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

    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
  • Assembly

    Watch assembly video

    • Cover and core ship separately. Ensure receipt of both boxes.
    • Unroll cover (arrives unzipped as top and bottom layers) 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

    Will the Kids' Mattress fit my bed frame?

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

    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 and is chemical free. We quilt this material into our mattress covers for a safer, non-toxic solution.

    Is the mattress comfortable for my child?

    Our Kids' 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, a longer duration of sleeping on it is not recommended for parents.

    What sheets should I use?

    We recommend using a cotton sheet for the most comfortable and breathable sleep for your child. Because our mattress is 5.5" thick, it's best to find sheets with an 8" pocket to fit snuggly on the mattress.

100-Night Free Trial

100-Night Free Trial

Try the Newton Twin Mattress for 100 nights risk-free to decide if it’s right for you and your big kid. If either of you aren’t happy, simply return at our expense for a full refund.

Free Shipping 100 Night Free Trial Free Returns

Top 3 Kid's Mattress Questions

Top 3 Kid's Mattress Questions

  • Is the kids’ mattress waterproof?

    Our Kids’ Mattress is not waterproof, however, the cover is water resistant and the entire mattress is washable from cover to core! The removable cover can go into the washing machine and the core can be washed in the bathtub or shower! The core comes in 3 sections to make washing only the soiled area even easier.

  • Can I use a mattress pad?

    You can certainly use a mattress pad! We make a breathable, waterproof mattress pad that fits just like a fitted sheet and makes quick changes easy to manage when accidents happen.

  • Why is it important to have a washable kids’ mattress?

    Kids are messy and we all know accidents happen! Our unique unique cover-to-core washability ensures that — no matter the mess — your big kid will have the cleanest night’s sleep, guaranteed!