Search  for anything...
Amazon Basics

Amazon Basics Memory Foam Mattress, Soft Plush Feel, Breathable, California King, White/Grey, 84 x 72 x 12 inches (LxWxH)

  • Based on 8,117 reviews
Condition: New
Checking for the best price...
$377.10 Why this price?
Save $122.89 was $499.99

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – 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, Zip, Apple Pay, and Google Pay. 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 Amazon
Arrives Friday, Oct 2
Order within 20 hours and 19 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: California King


Style: 12-inch


Pattern Name: Plush-Feel


Features

  • Cal King size mattress offers enhanced sleeping comfort; ideal for any bedroom or guest room
  • Soft plush-feel memory foam adapts to the contours of the body and comfortably conforms to different sleep positions
  • Vacuum packed for convenient, compact shipping; remove from box and allow up to 72 hours to fully expand
  • 3 foam layers include a memory-foam top layer, a middle layer with breathable holes for ventilation, and a convoluted foam base
  • CertiPUR-US certified foam and Oeko-Tex certified top fabric
  • Product Dimensions: 84 x 72 x 12 inches (LxWxH)

Description

Amazon Basics Memory Foam Mattress, Soft Plush Feel, 12 Inch, California King, White/Grey

Size: California King


Product Dimensions: 84"L x 72"W x 12"Th


Item Weight: 73.6 pounds


Item Firmness Description: Plush


Top Style: Memory Foam


Cover Material: Polyester Blend


Number of Layers: 3


Fill Material: Memory Foam


Special Feature: Pressure Relief


Item Firmness Description: Plush


Number of Layers: 3


Additional Features: Pressure Relief


Construction Type: Memory Foam


Size: California King


Item Dimensions L x W x Thickness: 84"L x 72"W x 12"Th


Item Weight: 73.6 pounds


Item Depth: 12 inches


Item Dimensions: 84 x 72 x 12 inches


Cover Material: Polyester Blend


Fill Material: Memory Foam


Product Care Instructions: Spot Clean Only


Mattress Comfort Layer Material: Memory foam


Material Type: Memory Foam


top-style: Memory Foam


Color: White/Grey


Shape: Rectangular


Style Name: 12-inch


Model Name: HKSP01012CK


Product Benefits: Enhanced comfort and support for a restful night's sleep; ideal for adults seeking a soft, conforming memory foam mattress.


Model Number: P22MD -12CK


UPC: 843668102903 840324419443


Number of Items: 1


Age Range Description: Adult


Included Components: mattress


Item Type Name: Bed Mattress Conventional


Manufacturer Part Number: HKSP01012CK


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 2

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great mattress
Size: Twin Style: 6-inch Pattern Name: Plush-Feel
This one is SO soft and perfect for my lightweight toddler to still be about to sink in a little and get comfortable. Fluffed up fully in a couple days, as expected.
Reviewed in the United States on July 27, 2026 by Anthony K
    • ⭐️⭐️⭐️⭐️⭐️
Size: Full Style: 12-inch Pattern Name: Plush-Feel
Bought this mattress for my toddlers room. Easy assembly, super comfortable for a good nights sleep. Easy to assemble (arrives air packed sealing). Would recommend for the price point!!!
Reviewed in the United States on August 2, 2026 by JB
    • Happy sleeper
Size: Queen Style: 10-inch Pattern Name: Plush-Feel
Review Image by Wilde
I’m quite satisfied with this mattress. Full disclosure to others looking to this review for guidance on whether or not to buy it: I had ordered another, cheaper memory foam bed in a box compressed mattress and it was just way too firm. It was too expensive to send it back, so I have it underneath THIS mattress. I also have a memory foam mattress topper on top. So this mattress is sandwiched between a firm memory foam mattress and a soft memory foam mattress topper. I actually had two mattress toppers on because I just happened to have two, but it was way too high and just too mushy. Anyway, I digress. I really like this mattress. I like a very soft mattress but sometimes too soft seems to hurt my lower back and my joints, specifically my hips. I’ve had no issues with pain anywhere. I sleep well on this mattress. I don’t know what it’s like on its own but I know that the way I have it set up is excellent. I also know that it was super easy to set up. I dragged the box up one flight of steps by myself. I cut it open and place it on the bed on my own. It was a little difficult but I managed and it didn’t take long. It’s amazing how quickly it puffs up into a mattress. Truly amazing. I feel like I’ll have this mattress for a long time. It seems very well made / durable. I think it was worth the money. I’m happy! If you like a plush mattress and an easy and quick bed in a box, order this. ... show more
Reviewed in the United States on August 29, 2025 by Wilde
    • Comfortable Budget Mattress — Soft, Supportive, and Good Value for the Price
Size: Twin Style: 10-inch Pattern Name: Plush-Feel
The Amazon Basics 10" Memory Foam Mattress is a solid choice if you’re looking for an affordable, comfortable mattress without paying premium brand prices. It’s especially good for guest rooms, kids’ rooms, or anyone who prefers a softer sleep surface. Right out of the box, the mattress expanded pretty quickly after opening (give it the recommended time before sleeping on it). There was a mild “new foam” smell at first, but it faded within a day or two, which is pretty typical for memory foam mattresses. The feel is definitely on the softer/plush side. If you like that slightly sinking, contouring memory foam feel, this does a good job. It cushions pressure points well, especially for side sleepers. It still has enough support underneath that you don’t feel like you’re completely sinking through the mattress. Temperature-wise, it sleeps fairly neutral for memory foam. It’s not specifically marketed as cooling, but I didn’t find it overly hot compared to older memory foam styles. The cover looks clean and simple, and the white/grey design works well with most bedding setups. Pros: ✔ Very comfortable plush/soft feel ✔ Good pressure relief (great for side sleepers) ✔ Good value for a memory foam mattress ✔ Expanded quickly after opening ✔ Minimal off-gassing smell compared to some foam mattresses Cons: ✖ May be too soft for stomach sleepers or people wanting very firm support ✖ Not specifically a cooling mattress (just average temp control) ✖ Edge support is decent but not super firm Overall: If you want a budget-friendly memory foam mattress that still feels comfortable and supportive, this is a great option. It’s especially good for guest rooms, kids, teens, or anyone who prefers a softer sleep surface without spending a lot. ... show more
Reviewed in the United States on February 10, 2026 by Dave & Steph
    • Great buy!
Size: Twin Style: 6-inch Pattern Name: Plush-Feel
This bed was perfect and comfortable for my daughter’s trundle bed. We have this bed in 6in and in 8in both are wonderful to sleep on. I would highly recommend, especially considering the price!
Reviewed in the United States on July 2, 2026 by Jessica Blanche
    • Soft and comfy
Size: Twin Style: 8-inch Pattern Name: Plush-Feel
Super soft - these are the BEST! They (I bought two sets) took a while to get here, but so worth the wait. I would definitely buy again!
Reviewed in the United States on July 17, 2026 by Scottie
    • Amazon Basic Memory Foam Mattress
Size: Twin Style: 6-inch Pattern Name: Plush-Feel
Great quality at great price
Reviewed in the United States on August 13, 2026 by JAB
    • The Marshmallow of Pain
Size: Queen Style: 12-inch Pattern Name: Plush-Feel
The first week it was excellent! Expanded quickly, I slept great, it was sufficiently supportive. The second week it went from excellent to good. I started noticing that the foam doesn't rebound as quick and I'm noticing weird low spots. After the third week I started noticing increasing problems. I woke up a lot more than usual. Even though I'm a light sleeper, I don't toss and turn much. Now I'm starting to frequently toss and turn. Not normal for me. For the past week or so I've been waking up with searing back pain. Like pain that feels like my back is filled with concrete that has set and can't bend forward. This back pain lasts for several hours. When I go to bed, my back feels fine. I'll wake up a few hours later with a dull pain when I must've turned in my sleep. When I wake up, it's nearly impossible to get out of bed. It hurts bad. I can barely bend to put on my shoes in the morning while sitting down, a task that has never been a problem for me. Now in all fairness, it may not be for someone my size. I'm 6'6" and 265 lbs. But still it shouldn't fail so quick. I looked this up and it's called "foam cell collapse". Pros: It'll let me wake up before my alarm due to back pain. Cons: This mattress is officially dubbed "the marshmallow of pain". Now how am I going to return this? I'm just glad I didn't get rid of my old mattress. My old mattress sucked, but it didn't cause mobility issues due to pain! ... show more
Reviewed in the United States on January 10, 2026 by Chuck Robinson

Can't find a product?

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