Search  for anything...
Sweetnight

Sweetnight King Mattress, 12 Inch King Memory Foam Mattress for Pressure Relief, Plush King Size Mattress in a Box, CertiPUR-US Certified, White

    • Based on 174 reviews
Condition: New
Checking for product changes
$379.99 Why this price?
Save $119.01 was $499.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term with PayTomorrow
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

Eligible for Return, Refund or Replacement within 30 days of receipt

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, Nov 27
Order within 2 hours and 47 minutes
Available payment plans shown during checkout

Color: White


Size: King


Style: 12 Inch


Features

  • BALANCE SUPPORT - The 12 inch king mattress is designed to conform to your body shape and provide you with targeted support so you can wake up to refreshing mornings. With the Sweetnight foam mattress, you'll be energized every day.
  • MOTION ISOLATION - The Sweetnight foam mattress maximizes motion isolation, so your child won't be woken up when they fall asleep.
  • COMFORTABLE FOAM MATTRESS - The king bed mattress features a three-layer design: comfortable memory foam, cushioned comfort foam, and high-density support foam. These foams are certified to provide you with a clean environment.
  • VENTILATION & MOISTURE ABSORPTION - Comfortable foam absorbs moisture to keep the king foam mattress clean and dry. The knitted cover is soft and skin-friendly and can help you quickly sleep at night.
  • FIT FOR ALL FRAMES- Sweetnight king memory foam mattress fit all king size frames, such as box spring, floor, slatted base, flat platform. Please allow 48-72 hours for your new mattress to fully expand.

Description

Sweetnight foam mattress is an all-foam mattress, which is a good option for couples. 1. Three-layer Foam Design The foam mattress is made of three different layers to provide proper support to your body, good for all position sleepers. 2. Keep Cool The bamboo foam absorbs body heat, minimizing heat retention and keeping your child sleeping at a cool temperature. 3. Skin- friendly Cover The durable cover is soft to your skin, it also uses a no- pilling fabric process to effectively reduce pilling. 4. Safe Sleep All of the foams used in this mattress are CertiPUR-US, CPF certified, ensuring that our products do not include any unhealthy material so that you can sleep safely and soundly. Please Carefully Check the Specific Dimensions of the Corresponding Size before Purchasing: 10 Inch Twin Mattress: 75"L x 39"W x 10"Th 10 Inch Full Mattress: 75"L x 54"W x 10"Th 10 Inch Queen Mattress: 80"L x 60"W x 10"Th 12 Inch Full Mattress: 75"L x 54"W x 12"Th 12 Inch Queen Mattress: 80"L x 60"W x 12"Th 12 Inch King Mattress: 80"L x 76"W x 12"Th What's in the Box? 1x Sweetnight King Size Bamboo Charcoal Foam Mattress 1x Sweetnight Opener 1x Manual Card Quick Note: Please allow 72 hours for a bamboo foam mattress to recover to its full shape. The rate of expansion is related to the temperature of the room. Most foam mattress in a box will expand faster in a warm room and will take longer in colder temperatures.

Size: King


Special Feature: Temperature Regulating, Pressure Relief, Breathable, Low Motion Transfer


Fill Material: Memory Foam, High Density Foam


Brand: Sweetnight


Product Dimensions: 75.98"L x 79.92"W x 11.81"Th


Color: White


Model Name: SN-M01511


Product Care Instructions: Hand Wash Only


Cover Material: Polyester


Portable: No


Item Weight: ‎15.65 pounds


Product Dimensions: ‎75.98 x 79.92 x 11.81 inches


Country of Origin: ‎Indonesia


Item model number: ‎SN-M01511-12-K


Date First Available: October 23, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

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.

Similar Products

Top Amazon Reviews

    • No need a box spring for our bed frame
Color: White Size: Queen Style: 12 Inch
Review Image by PNgo PNgo
Review Image by PNgo PNgo
Review Image by PNgo PNgo
I recently upgraded my kids' bedroom with the Sweet Night Queen mattress, and I couldn't be happier with the purchase. The medium firmness of the mattress strikes the perfect balance between support and comfort. At 12 inches in height, this mattress eliminates the need for a box spring, which was a convenient and cost-effective feature. The memory foam provides an exceptionally comfortable sleeping experience, ensuring a good night's rest for my two kids. One of the standout features of the Sweet Night mattress is that it didn't have any chemical smell when we first opened it. This is a big plus, as we didn't want any lingering odors in the kids' room. What's even more impressive is that we didn't have to wait for the mattress to expand; we could use it right away, and it was true to its queen size. This mattress has been a game-changer for our kids' sleep quality and comfort. It's not only comfortable but also breathable, which is important for a good night's sleep. In summary, the Sweet Night Queen mattress has exceeded our expectations, and I am happy with this purchase. It's a fantastic addition to our kids' room, and I highly recommend it to other parents looking to improve their children's sleep experience. ... show more
Reviewed in the United States on November 8, 2023 by PNgo PNgo
    • Great price and quality！
Color: White Size: King Style: 12 Inch
Review Image by Song Song
Review Image by Song Song
Review Image by Song Song
Review Image by Song Song
Great bed at a great price. Have been sleeping on this bed for one month now. In the box comes with a plastic tool to cut open the plastic wrap and as soon as you do, not even 5 minutes later it forms into shape!! The mattress is definitely a firm but with a soft top and a quick response when you push on it so you don't have that sink in feeling. The product is of high quality material and high quantity finishes. it was comfortable and relaxing. The two sides are independent, no matter how how tussle and the turn the other side can be, it would affect the other side, not like the traditional spring loaded mattress, you will tussle and turn from the other side. The mattress I bought last year was an 8"，it's not perfect for me. So I bought a 12" one at the end of the year. My profession is a truck driver.Driving for long hours every day is very tiring for me.I was having such an issue with back pain due to long driving and hurting my back so much. I think it's an occupational disease among truck drivers. now all that pains are no more and I am really sleep like a log .. this mattress the price was wonderful in comparison to other regular stores I checked out and I am quite pleased. I definitely recommend buying this mattress to make the bed EXTRA plush! One caveat, this thing is heavy. Be advised. ... show more
Reviewed in the United States on January 7, 2024 by Song Song
    • To sleep perchance to dream.
Color: White Size: Full Style: 12 Inch
Review Image by Aleksander Aleksander
Review Image by Aleksander Aleksander
Review Image by Aleksander Aleksander
Review Image by Aleksander Aleksander
My daughter outgrew her crib and we needed a bed big enough for her to sleep on with us since she refuses to sleep alone. We decided on a full-size bed but needed a comfortable mattress that would accommodate the adult body and toddler body. Pros: 1. Packaging. The mattress came in vacuumed packaging and seemed small at first. I will admit that for a brief second after opening the bag, I had my doubts that this would be 12 inches thick as advertised. I was wrong. This mattress is 12 inches thick and maybe even a little over. Amazingly, it was so well packaged despite its size. 2. Size. After opening the mattress, be sure to let it sit for a few hours to let it expand to its full size and potential. As you can see in the pictures, it is quite thick. 3. Comfort. My daughter is used to the hard mattress in her crib which is what was recommended for infant cribs. My old body prefers a mattress with some plush and softness. The foam allows a decent amount of firmness but remains easy on the back. The mattress underneath my body does not heat up like other foam mattresses that I have slept on. It also allows me to sneak out of bed after she falls asleep without causing too much motion or shake which would wake her up since she is a very light sleeper. 4. Cover. There is a cover on the mattress that looks like it might be possible to remove with zipper although I have not tried to remove it. The cover itself is very soft and I have slept on it without sheets. It does not appear to be waterproof, so I recommend getting a waterproof cover to protect your mattress if your toddler sleeps on it. Cons: I don’t see a con to this at all except that it’s relatively heavy but that’s probably because it is a high-quality mattress. ... show more
Reviewed in the United States on December 9, 2023 by Aleksander Aleksander
    • Comfortable and good value
Color: White Size: King Style: 12 Inch
Review Image by Evan Dewald Evan Dewald
Review Image by Evan Dewald Evan Dewald
Review Image by Evan Dewald Evan Dewald
Review Image by Evan Dewald Evan Dewald
We bought this mattress for our guest room. We thought it would be nice for our guest to have a big King sized bed to sleep in. We have hosted multiple guests and everyone has been excited to sleep on this mattress! It supports your body as you sleep and conforms to your body shape. We have not experienced any sag in the mattress. I think that this mattress is a good value paired with the right bed frame. It will make your room more homey. The mattress came in a box rolled up in a vacuum sealed bag. We followed the directions that came with the mattress. After opening it we let it expand for 48 hours before laying on it. I am very pleased with this mattress and will be using it for a long time! ... show more
Reviewed in the United States on January 27, 2024 by Evan Dewald Evan Dewald
    • Restful sleep
Color: White Size: King Style: 12 Inch
So at 1st I thought it wasn't going to be good. When I got it I opened it and the matress grow the 12 inches. It's super soft but firm which is good in my case because I have back problems. If your thinking about buying one go for it. It's cheap and made with good quality.
Reviewed in the United States on March 25, 2024 by Ari
    • Great Quality For Price
Color: White Size: King Style: 12 Inch
I was super hesitant to buy a mattress in a box for the 1st time and decided to go with this one! There was no strong odor that I’ve seen in reviews for other mattresses. I got the king size and have been sleeping on it for almost 4 months. I let it inflate for the full 72 hours and followed the instructions that came with it. It recommends rotating the mattress every 2 weeks, and that has prevented dips for my partner and I. The memory foam does hold heat but it’s nothing too bad, and a cooling mattress topper could definitely help with that. Overall pretty comfortable for the price! ... show more
Reviewed in the United States on March 25, 2024 by D
    • On the firm side
Color: White Size: Queen Style: 12 Inch
I can experience lower back problems with a mattress that is too soft. No issues with this mattress in that regard. I did put a SOPAT topper (non memory foam) on top. Makes it feel more like a pillow top and helps with side sleeping. It took a couple days to fully "inflate", edge support is decent. Very happy so far. ... show more
Reviewed in the United States on February 7, 2024 by Timo H

Can't find a product?

Find it on Amazon first, then paste the link below.