Search  for anything...

Full Size 12 Inch Hybrid Mattress, 7-Zone Support with Reinforced Edge, Pocket Coil & Foam for Pressure Relief, Medium Firm, CertiPUR-US Certified, Mattress in a Box

  • Based on 0 reviews
Condition: New
Checking for the best price...
$145.00 Why this price?
Save $124.99 was $269.99

Buy Now, Pay Later


As low as $24.17 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – 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

90-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 Steelite International

Arrives Saturday, May 16
Order within 19 hours and 54 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: Full


Set name: 12 inch


Features

  • Zoned Support for ComfortDesigned for single sleepers seeking a roomier feel or couples who prefer closer sleeping, this 12-inch full hybrid mattress provides balanced, stable supportideal for everyday comfort in smaller bedrooms
  • Motion Isolation & Edge StabilityIndividually wrapped pocket coils help minimize motion transfer for restful sleep, while reinforced edge support improves stability, helps prevent roll-off, and makes the most of the available sleeping surface
  • Targeted Pressure Relief A 7-zone pocket coil system paired with memory foam delivers targeted pressure relief for shoulders and hips. Breathable knit fabric and open-cell foam promote airflow for a cooler night's sleep
  • Durable, Certificated SafetyMade with CertiPUR-US certified foam and OEKO-TEX certified fabric, this fiberglass-free mattress is crafted without harmful substances. High-density base foam ensures long-lasting durability
  • Easy Setup & WarrantyCompressed and boxed for easy delivery, this mattress fits most bed frames and fully expands within 4872 hours. Enjoy a 100-night sleep trial and a 10-year limited warranty

Brand: HAPPYMONT


Size: Full


Product Dimensions: 75"L x 54"W x 12"Th


Item Weight: 57.2 Pounds


Item Firmness Description: Medium


Top Style: Euro Top


Cover Material: Cotton


Number of Layers: 3


Fill Material: Memory Foam


Color: Black


Item Firmness Description: Medium


Number of Layers: 3


Mattress Coil Type: Pocketed Coil


Construction Type: Hybrid


Size: Full


Item Dimensions L x W x Thickness: 75"L x 54"W x 12"Th


Item Weight: 57.2 Pounds


Item Thickness: 12 Inches


Item Dimensions: 75 x 54 x 12 inches


Cover Material: Cotton


Fill Material: Memory Foam


Mattress Comfort Layer Material: Comfort Foam, Memory foam


Material Type: Memory Foam


Brand Name: HAPPYMONT


Model Name: PSD-12F


Product Benefits: Pressure Relief, Motion Isolation, Edge Stability, Temperature Regulation


Model Number: PSD-12F


Manufacturer: HAPPYMONT


Set Name: 12 inch


Manufacturer Part Number: PSD-12F


Unit Count: 1.0 Count


Included Components: Instruction Manual


Item Type Name: Bed Mattress Conventional


top-style: Euro Top


Color: Black


Style Name: Luxury


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 16

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
  • 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


  • Great mattress at a great price point.
So far, so good! I bought this mattress for our 3.5 yo son for his new bed as he had outgrown his toddler bed. I was looking for something medium firmness, and would be comfortable if either me or my husband had to spend the night on it if he came into our room. The mattress shipped and arrived quickly, I was able to bring it in to the house myself and my 12 yo son helped me set it up one evening. It fluffed up quickly, and evenly with no noticeable lingering smell from being compressed. We did give it 24 hours to fully expand. The mattress is only 10 inches, and the bed we are using doesn’t need a box spring. I did get soft mattress topper from Target to give it a bit more squish and have a waterproof mattress pad on top of that because it’s for a toddler. So far he’s slept on it really well, doesn’t seem to be tossing, turning and waking up like he was in his smaller bed. The times I’ve laid on it, it’s comfortable and has a nice firmness to it. I maybe would like it a little thicker, but it works well with his bed and I feel confident we’ll have it well into his teen years. ... show more
Reviewed in the United States on May 1, 2026 by Jamie Naborsky

  • Mattress twin size 12
Size: Twin Set name: 12 inch
Great mattress for a kid’s bed. It’s comfortable, supportive, and holds its shape well. My child sleeps much better now. Easy to set up and a great value for the price. Highly recommend!
Reviewed in the United States on April 23, 2026 by Celina

  • Sleeping in a cloud
Purchased this mattress for my teenager to complete his transition from kid to adult luckily for him I got a cloud, asked me why didn't bought before It comes with a really good quality, super easy to transport since comes in a box just unwrap and take minutes to complete the unpacking perfect firmness and comfort to get a restful night It's a perfect mattress for the price I really recommend this mattress ... show more
Reviewed in the United States on April 23, 2026 by Marjorie Berducido✨️

  • Great Purchase
Size: Twin Set name: 12 inch
No regrets at all with this purchase. It’s comfortable, supportive, and feels durable. I was worried it might be too soft or too firm, but it’s honestly just right. I look forward to getting into bed now.❤️❤️❤️
Reviewed in the United States on April 25, 2026 by Elizabeth

  • Very comfortable
Size: Twin Set name: 12 inch
The media could not be loaded. I’m really happy with this dark color twin size mattress. It looks clean and stylish, and the darker color hides stains well. The mattress is very comfortable and gives good support for a great night’s sleep. It was easy to set up and feels high quality.
Reviewed in the United States on May 1, 2026 by Wei

  • Highly recommend
These mattresses are awesome. I would definitely get again. The color combination is nice. The springs in the bed itself is amazing. It’s comfortable. I got 2 10 inch for my teenage sons and they love it. The 10 inch is really really nice. I’d highly recommend this brand
Reviewed in the United States on April 24, 2026 by Ivana Reid

  • No go
Size: Twin Set name: 12 inch
This mattress is smaller than my twin frame and my twin sheets are too big. It is bouncy and uncomfortable. The corners of the bed slant down. Not a good choice
Reviewed in the United States on April 27, 2026 by Jennifer Hughes

  • Not expensive for Bed in a box
Great size and just the right amount if firmness. My back stopped hurting. You don't need a base frame or box spring. Mine is on the floor. Great price.
Reviewed in the United States on April 30, 2026 by Debbie

Can't find a product?

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