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King Mattress, 14 Inch 5-Zone Deep Sleep Medium Firm Mattress with Extra Lumbar & Shoulder Support, Hotel Collection Hybrid Mattresses, Fiberglass Free & No Odor - 365 Nights Trial

  • Based on 54 reviews
Condition: New
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$349.99 Why this price?

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Availability: Only 4 left in stock, order soon!
Fulfilled by SLEEP100 SYNERGY LIMITED

Arrives Friday, Jun 12
Order within 4 hours and 27 minutes
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Size: King


Style: 14 Inch


Pattern Name: Medium


Features

  • 365-NIGHT HOME TRIAL - Worried our mattress might not meet your expectations? No need! We offer an industry-leading 365-day trial, giving you ample time to experience it fully. If you have any questions, feel free to contact our dedicated support team. We are committed to providing professional and efficient solutions within 24 hours. Try it risk-free for a full year.
  • FIBERGLASS FREE & COOLING TOUCH: SLEEP100 firm king mattress in a box is both CertiPUR-US and OEKO-TEX Standard 100 certified, ensuring the absence of toxic materials and fiberglass in its composition. It has successfully met the fire-resistant CFR1633 STANDARD test, offering a secure and skin-friendly environment for your rest.This mattress uses innovative temperature-regulating foam for exceptional cooling comfort.
  • ENHANCED SHOULDER & LUMBAR SUPPORT: Hundreds of pocket springs respond independently, contouring your body and minimizing motion transfer. Reinforced center zone delivers strong support for hips and lower back. With a unique zoned design, providing targeted relief for the shoulders and lower back. It's perfect for those with discomfort in these areas. The Euro Top relieves pressure and keeps spines aligned, delivering spa sensations for back/side sleepers.
  • A GREAT MATTRESS OPTION FOR UNDER $300: From top to bottom, inside and out, we use only safe and top-tier materials for your comfort and health. Based on advanced sleep science, reinforced 2.1-2.3 mm perimeter coils prevent roll-off and expand sleep space. Supports up to 800 lbs, this 12-inch king hybrid mattress is ideal for plus-size individuals.
  • FOREVER WARRANTY - Enjoy peace of mind with our industry-leading, lifetime warranty. As long as you own the mattress, its fully covered. We proudly stand behind our product quality, ensuring lasting comfort and support for years to come. Note: Your king size mattresses will fully expand within 24-72 hours after unboxing. (Please exercise caution during the mattress's rapid unfurling process and read the manual carefully before you unboxing.)
  • Firm King Size Mattress / 14 Inch King Mattress Firm / Firm Hybrid Mattress King for Back or Hip Pain Relief

Brand: SLEEP100


Size: King


Product Dimensions: 80"L x 76"W x 14"Th


Item Weight: 110 Pounds


Item Firmness Description: Medium


Top Style: Euro Top


Cover Material: Polyester Blend


Number of Layers: 8.0


Fill Material: Gel Memory Foam


Special Feature: Extra Lumbar & Shoulder Support, Firm, Pain Relief, Edge support, Side Handles for Easy Movement


Product Dimensions: 80 x 76 x 14 inches


Item Weight: 110 pounds


Manufacturer: SLEEP100


Item model number: P240333


Date First Available: November 1, 2024


Age Range Description: ALL-AGE


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 12

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


  • Great 👍🏼 mattress and came very quickly 10 out of 10
Size: Full Style: 14 Inch Pattern Name: Medium
This is one of the most comfortable mattresses I’ve ever slept on you would never know it was from a box. The 14” fully opened almost immediately straight out of the box. The thickness is astounding This is very comfortable and firm and the size is perfectly a full size mattress , there is no sinking in and the way it is made I feel as though it will keep it’s shape nicely. The package came very quickly and undamaged. I would 100% recommend the mattress 👌I give it a 10 out of 10 ! GREAT JOB 👏 ... show more
Reviewed in the United States on February 17, 2026 by Sarah

  • All the reviews are true. Great buy super mattress
Size: King Style: 14 Inch Pattern Name: Medium
It’s been 6 weeks so a good time to leave a review. I looked at the other reviews before purchasing and let me tell you they were spot on. This mattress is as good as I have ever had in my life and half the Price or less. Good firm and very supportive both for me 230# and my wife around 150# it heavy though but has side handles. Great Value ... show more
Reviewed in the United States on August 29, 2025 by Mark

  • Worth the money
Size: King Style: 14 Inch Pattern Name: Medium
This is such a good quality mattress that I have been so happy to find. This one is very stiff. Really good support all throughout the mattress very nice shape. It doesn’t concave around the corners. Great support- really can’t say better things about it for the price. Do you know that it is stiff!! 9/10 stiff ... show more
Reviewed in the United States on May 8, 2025 by Biker in MN

  • It's a True King Size
Size: King Style: 14 Inch Pattern Name: Medium
Great look ,Great feel but Im a big guy and it was supposed to be a "Firm" mattress and its not...Maybe because of the pillow top but my thinking was that the pillow top should be a "Firm" as well but I was wrong. Sleeps good though
Reviewed in the United States on May 18, 2025 by Chubb

  • Worth every penny!
Size: King Style: 14 Inch Pattern Name: Medium
This bed is really firm but very comfortable. I no longer get back pain from a sinking matress. I did put a 2in. SERTA MEMORY FOAM TOPPER for added comfort but not needed. I already had it for cooling. When we opened we did stay off of it for 73 hours. It filled out nicely. Im very satisfied and could not beat the price anywhere local for this comfort. One more thing we have a metal frame so we added mds board to avoid mattress from ruining. No odd smells were experienced either. ... show more
Reviewed in the United States on July 2, 2025 by Barb

  • Sleep 100 mattress Negative Experince
Size: Twin Style: 10 Inch Pattern Name: Medium
Item not as pictured or explained in Ad. The springs are not covered with any cushion and everyone can be felt when laying on the mattress. Their solution to that us to spend more money to buy a mattress pad to cover the springs. This mattress was bought for my 87 year old mother who has had several back surgeries, because of their explanation of back and shoulder support. It is not comfortable at all laying on all the springs. Very very disappointed. They also tell me can return it. I cant haul a twin mattress to the post office and pay for self ship. Warranty and product is a scam worst experience with a vendor on Amazon ever. Obviously cant fold it and put it back in the box. Not a pleasant experience with thus Seller. ... show more
Reviewed in the United States on February 6, 2026 by Laurie Smith

  • Great little mattress - not too firm or soft!
Size: Twin Style: 10 Inch Pattern Name: Medium
This is a great little mattress. Not too firm and not too soft. After having issues with my back and sleeping in a bed, that was too soft, they seem to do the trick and help my back issues. Shipping was good and arrived nicely it took a few hours to spring to life, but it’s perfectly shaped now!
Reviewed in the United States on August 1, 2025 by J. Melnic

  • Comfortable sleep and comfortable on the wallet
Size: King Style: 14 Inch Pattern Name: Medium
We were skeptical about buying a mattress on Amazon. I am so glad we made this decision. Took 24 hours to settle and this review is 12 months later. And this is still the most comfortable mattress we’ve ever had.
Reviewed in the United States on January 29, 2026 by Christina

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