Search  for anything...

Twin Mattress 12 Inch for Kids Adults Memory Foam Hybrid Mattress with Motion Isolation and Pressure Relief, Strong Edge Support, Pocket Spring Twin Size Mattress in a Box

  • Based on 75 reviews
Condition: New
Checking for the best price...
$121.82 Why this price?
Save $118.17 was $239.99

Buy Now, Pay Later


As low as $20.30 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Oct 29
Order within 10 hours and 18 minutes
Available payment plans shown during checkout

Size: Twin


Style: 12 inch


Features

  • Comfortable & BreathableTwin size mattresses, 12 inches in height, crafted with high-end fabrics for a luxuriously soft and silky touch. Our exclusive knit fabric technology effectively enhances air circulation both inside and outside the mattress, absorbing odors and moisture to create a dry, hygienic, and comfortable sleeping environment. This ensures you experience refreshing sleep and wake up feeling thoroughly rejuvenated.
  • Unparalleled Sleep EnjoymentOur 12 inch hybrid twin mattress features patented supportive technology that ensures every part of your body fits perfectly, providing unprecedented relaxation and effectively relieving fatigue for a better night's sleep. All foams in the SIMARTH mattress are CertiPUR-US certified, guaranteeing the absence of harmful substances and ensuring a safe and healthy sleep environment for you.
  • Healthy SleepOur medium firm twin mattress is constructed with individually pocketed springs and multiple layers of premium memory foam, expertly arranged in high-quality memory foam and ultra-high-density base foam. The upper layer offers a soft rebound, while the lower layer provides strong support, ensuring all parts of your body are evenly supported and maintaining a natural posture during sleep.
  • Perfect Scientific CombinationUnlike traditional mattresses with only 2 coils, our twin size mattress incorporates an additional 3 coils to enhance edge support. It adapts the support force in real-time to your body movements and pressure changes, ensuring optimal support and rebound, allowing you to achieve a quiet and comfortable deep sleep.

Brand: SIMARTH


Size: Twin


Product Dimensions: 75"L x 39"W x 12"Th


Top Style: Pillow Top


Cover Material: Fabric, blend


Number of Layers: 6


Fill Material: High density foam and individual pocketed springs


Weight Limit: 1000 Pounds


Special Feature: Cordless


Color: Black, Dark Gray


Product Dimensions: 75 x 39 x 12 inches


Item Weight: 43 pounds


Manufacturer: AWT Store


Item model number: SC12T


Date First Available: August 19, 2025


Age Range Description: Suitable for all ages


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • 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


  • Yes it adds the comfort needed with a hard bed
It makes a cheap hard bed into a comfortable bed!!!!
Reviewed in the United States on October 3, 2025 by Julia Wilcock

  • Comfortable
Value for money: Worths the money you Pay for it Support: Is so confortable & firm that your back would not have any pain again
Reviewed in the United States on June 30, 2025 by Vicente Santos

  • Excellent
El colchón es muy cómodo y brinda buen soporte para descansar. La calidad de los materiales es buena y se nota resistente. Se adapta bien al cuerpo y ayuda a dormir mejor.
Reviewed in the United States on September 16, 2025 by Yeranna

  • Great matress
Size: Full Style: 10 inch
So far I really like this mattress. Been using it for about 3 weeks and I sleep well. It’s comfortable, but I also have a pillow topper that’s about 2 inches thick. It is surprisingly firm. I was afraid it was going to be too soft. You can’t beat the price for what you get. I would buy again.
Reviewed in the United States on October 12, 2025 by Leah

  • Bed
I didn’t move except for once as a pregnant woman it has all the support I needed
Reviewed in the United States on May 9, 2025 by Xena Fetten

  • Mattress
Great value for Mattress
Reviewed in the United States on June 5, 2025 by Gabriela Schmitz

  • Comfortable Mattress That Expands Quickly and Sleeps Well
Size: Twin Style: 10 inch
I set this up a few days after delivery, and it was ready for use within hours. It expanded to full size faster than expected, with only a very light odor that faded within the first day. The surface looks neat and well-finished, and the edges filled out evenly without sagging. We have been using it nightly for just over two weeks, and comfort has been excellent. The top layer has enough softness to let you sink in slightly, while the base provides steady support. It strikes a comfortable balance between cushioning and firmness, making it suitable for both kids and adults. Compared to our older spring mattress, this feels more modern, with almost no motion transfer — one person can shift without disturbing the other — and none of the creaking or uneven spots we had before. Sleep quality has been consistent. The surface does not trap heat, so it stays comfortable through the night even in warmer weather. The edge support is better than expected for this type of mattress, and sitting or lying near the sides does not cause it to collapse. The cover feels durable, with no loose threads or pilling after a couple of bedding changes, and the stitching looks secure. Setup was simple. It came tightly packed, was easy to carry upstairs thanks to its lighter weight, and began expanding immediately once unrolled. Within about four hours it was close to full height, and by the next morning it looked completely settled and ready to use. Durability is showing promise. The foam has held its shape after nightly use with no impressions or dips forming. It supports both lighter and heavier sleepers equally well, staying level and firm across the surface. The cover wipes clean easily, which makes upkeep simple. Based on the first weeks of use, I expect it to hold up well for years. Overall: This has been a strong choice for a twin bed. It is easy to set up, comfortable for different sleepers, stays supportive night after night, and feels well-made. For anyone looking for a modern, reliable alternative to a spring mattress, this is an excellent option. ... show more
Reviewed in the United States on October 2, 2025 by Starlight

  • Marketing fraud-no memory foam
Size: Twin Style: 10 inch
Dont buy this mattress! The item description pic shows this mattress has a high density memory foam layer and a soft foam layer. This mattress has neither! Its the outer liner then the coils.
Reviewed in the United States on October 7, 2025 by Randy Rollins

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...