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King Mattress,12 Inch Hybrid in a Box,Gel Memory Foam and Pocketed Springs for Motion Isolation and Pressure Relief,Medium Firm with Edge Support,White Mattresses

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$319.99 Why this price?
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Apr 21
Order within 49 minutes
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Size: King


Style: 12 inch


Features

  • Better Support, Sweet Sleep12 Inch King Mattress in a Box combines independent pocket springs with cooling gel memory foam to evenly distribute your weight from head to toe. The hybrid mattress structure offers targeted pressure relief and strong spinal support, allowing your muscles to fully relax and helping you enjoy deep, restful sleep every night.
  • Independent Motion, Peaceful NightOur king hybrid mattress features hundreds of independent pocket springs that move separately to reduce motion transfer and absorb vibration. Whether you or your partner toss and turn, the mattress minimizes noise and disturbance so you both can enjoy uninterrupted sleep throughout the night.
  • Cooling & Healthy MaterialsMade from high-density foam layers and gel-infused memory foam, this cooling mattress enhances airflow, draws away heat, and prevents moisture buildup. The breathable knit fabric cover keeps your sleep surface clean and comfortable, ensuring a fresh and healthy sleeping environment.
  • Durable Edge & Long-Term StabilityReinforced edge support provides consistent firmness from center to side, expanding your usable sleep area and preventing sagging over time. The durable hybrid mattress construction offers reliable stability and maintains its shape for years of comfortable use.
  • Smart Delivery & Reliable WarrantyYour king memory foam hybrid mattress is compressed and rolled for easy delivery and convenient handling. Simply unbox, unroll, and allow 2472 hours for it to fully expand to its original shape and comfort

Brand: PHYAIR


Size: King


Product Dimensions: 80"L x 76"W x 12"Th


Item Weight: 51 Pounds


Item Firmness Description: Medium


Top Style: gel_top


Cover Material: Knitted fabric


Number of Layers: 9


Fill Material: Memory Foam


Special Feature: Bagged


Item Firmness Description: Medium


Number of Layers: 9


Additional Features: Bagged


Mattress Coil Type: Pocketed Coil


Construction Type: Memory Foam


Is Customizable?: No


Size: King


Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th


Item Weight: 51 Pounds


Item Depth: 12 inches


Item Dimensions: 80 x 76 x 12 inches


top-style: gel_top


Color: White


Style Name: 12 inch


Brand Name: PHYAIR


Age Range Description: Adult


Model Name: mattress


Product Benefits: Back Pain Relief, Hypoallergenic, Improves Sleep, Pressure Relief, Stress Relief


Model Number: BS001-12K


Manufacturer: PHYAIR


Included Components: Durable Construction, Easy Setup, Mattress, Motion Isolation, Temperature Regulation


Cover Material: Knitted fabric


Fill Material: Memory Foam


Product Care Instructions: Hand Wash Only


Mattress Comfort Layer Material: Gel Memory Foam


Material Type: Memory Foam


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 21

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


  • Perfect firmness for back pain
Size: Full Style: 12 inch
It offers the perfect "Goldilocks" feel: not too firm, not too soft. The combination of supportive coils and memory foam is fantastic. As someone who used to wake up with lower back pain, I haven't experienced any soreness since sleeping on this bed. My spine feels properly aligned whether I'm on my back or side. I also tend to sleep hot, and I stay cool and comfortable all night long, with no overheating issues. ... show more
Reviewed in the United States on December 30, 2025 by Jess Liu

  • Comfortable
Size: Full Style: 10 inch
Clean, comfortable, and well-made. The mattress has a soft quilted surface with even stitching and feels supportive without being too firm. It fits the bed frame nicely and looks durable—great for a good night’s sleep at a reasonable value.
Reviewed in the United States on January 6, 2026 by Yang Fan

  • Comfortable
Size: Full Style: 10 inch
The mattress is very comfortable—neither too firm nor too soft—and it fits my requirements perfectly. The delivery was also reasonable and efficient. I recommend it.
Reviewed in the United States on January 8, 2026 by stephen frye

  • Hard surface
It could just be me since I’m used to sleeping on a waveless waterbed but this mattress feels like I’m laying o wood. It’s hard and uncomfortable. I wake every morning with my hip and shoulder sore on the side I lay, and I have trouble getting to sleep. And I wake up often during the night to reposition because I’m uncomfortable. I’m going to have to spend more money to purchase a topper and extra deep sheets. The material on the sides of the bed is thin and you can easily feel the coils. ... show more
Reviewed in the United States on February 10, 2026 by Gram56

  • Comfy
Size: Full Style: 12 inch
Exceeded expectations!!!! Very comfortable and supportive.
Reviewed in the United States on February 17, 2026 by Brittany

  • very comfortable
I bought the mattress for my son. He told me it's very comfortable andhe loves it.
Reviewed in the United States on January 12, 2026 by Yan

  • Not 12” but it is 10” thick
Size: Full Style: 12 inch
My 12” Full mattress seems to be just an even 10 inches thick with no extra room in the outer covering for it to expand another 2 inches. It is described as 35 pounds but I weighed it in at an even 60 pounds. It is a comfortable mattress.
Reviewed in the United States on January 3, 2026 by Plain Jane

  • Suggest
Size: Full Style: 10 inch
It's good
Reviewed in the United States on March 10, 2026 by Ella

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