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Delta Children Serta SleepTrue Mini Crib Mattress, Premium Sustainably Sourced Fiber Core, Hypoallergenic & Waterproof Cover, Greenguard Gold Certified - Made in USA, White

  • Based on 3,869 reviews
Condition: New
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Availability: In Stock.
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Arrives Sunday, May 24
Order within 2 hours and 27 minutes
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Features

  • FITS MOST MINI & PORTABLE CRIBS: This crib mattress fits most mini cribs and portable cribs; mattress measures 38"L x 24"W x 4"H (not designed for standard cribs or pack 'n plays) | Measure your crib first to ensure a perfect fit.General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding
  • IDEAL SUPPORT FOR BABY: This mini crib baby mattress features a premium sustainably sourced firm fiber core made from upcycled plastic bottles for a healthier, longer sleep for your baby| Non-toxic construction is free from harmful materials/chemicals
  • WATERPROOF DESIGN IS EASY TO CLEAN: Features a durable, waterproof vinyl cover that wipes clean and is hypoallergenic
  • SAFETY CERTIFICATIONS: GREENGUARD Gold certified: recognizes products with low chemical emissions, contributing to healthier environments | Meets or exceeds flammability, lead, phthalate and CPSIA testing and does not contain toxic fire retardants
  • TRUSTED BRAND: Trusted 10 Year Warranty

Description

Create the ultimate Sanctuary for your little one with Serta Sleep true 4-inch mini crib mattress. Designed to fit most mini or portable cribs, This baby mattress delivers all the benefits of a full-sized crib mattress in a scaled- down size

Brand: Delta Children


Size: 38x24x4 Inch (Pack of 1)


Product Dimensions: 38"L x 24"W x 4"Th


Item Weight: 3.9 Pounds


Item Firmness Description: Firm


Top Style: Tight Top


Cover Material: Vinyl


Number of Layers: 2


Fill Material: Recycled Polyester Fiber


Special Feature: Fire Retardant, Hypoallergenic, Stain Resistant, Water Resistant


Product Dimensions: ‎38 x 24 x 4 inches


Item model number: ‎M70407-1119-NO


Material Type: ‎Vinyl


Additional product features: ‎Fire Retardant, Hypoallergenic, Stain Resistant, Water Resistant


Number Of Items: ‎1


Style: ‎Mattress


Batteries required: ‎No


Is portable: ‎Yes


Item Weight: ‎3.9 pounds


Age Range Description: ‎Kid


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 24

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great quality and safe!
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
This fit great with the mini crib we chose, and the quality is great in the sense that it does not “feel” cheaply made and it is firm to use for newborn baby and even up until now (she is 2 years old now). It is also easy to clean after accidents, and easy to put on/off mini crib size sheets. Great mattress overall! ... show more
Reviewed in the United States on December 26, 2024 by Danielle C

  • Perfect mattress for mini crib!
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
We bought this for my daughter for her mini crib, we were a bit tight on space in our apartment and had to purchase something smaller. Overall it’s a great product for the price, it doesn’t make any noise when putting down the baby, it’s soft and has great support. We also use this whenever we need to go on trips because it fits perfectly into our pack and play, it’s quite durable! It has many uses, happy we purchased it. ... show more
Reviewed in the United States on September 22, 2024 by Daniel

  • Good mattress!
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
Waterproof, very durable. Still used by toddler in convertible bed. It will last if they stay under a certain weight. Could be more comfortable, but if you need waterproof, this is waterproof for sure.
Reviewed in the United States on November 13, 2025 by kitty chemist

  • Best mini crib mattress
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
This is the second time I purchase this mattress for my twin boys. The first time was before they were born two years ago. I bought them again because they still use their mini cribs as a toddler bed and just needed new ones because they put the first ones through it all. They are water proof and do resist a lot. My boys would dump their milk on purpose as well as remove diapers or have super heavy leaks because they would tug on their diaper. I highly recommend these mattresses ... show more
Reviewed in the United States on November 30, 2025 by Diana Ramirez

  • Nice firm and supportive mattress for baby.
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
Nice firm and supportive mattress for baby. I like the thickness and firm without being a brick. My baby likes it. I removed a star because it does make noise when putting baby down. I recommend having a white noise on first to drown out the crinkle sound of mattress.
Reviewed in the United States on March 26, 2025 by OC

  • Fits snug and perfect inside crib
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
Seems perfect! Baby hasn’t been born yet, but it’s snug in the crib and the memory foam is perfect!
Reviewed in the United States on April 17, 2025 by Christy Sellars

  • Perfectly firm
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
Perfectly firm for infant. I bought it for the graco pac n play the width is just a bit too short but will work fine
Reviewed in the United States on July 15, 2025 by Celeste Elias

  • Perfect for my older puppy
Size: 38x24x4 Inch (Pack of 1) Style: Mattress
If I could give 10 ⭐️ I would! My fur baby loves his new day bed.
Reviewed in the United States on August 25, 2025 by Embers0820 Embers0820

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