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SLEEP100 King Mattress - 14 Inch 5-Zone Deep Sleep Firm Hybrid with Extra Lumbar & Shoulder Support, Fiberglass Free, Hotel Collection, 365 Nights Trial

1,202

260.99$

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  • 5-zone support for deep sleep
  • Extra lumbar and shoulder support
  • Fiberglass-free and odorless design
  • 365-night risk-free trial
  • Hotel-quality hybrid mattress

Pros

  • ✓Firm support ideal for back and side sleepers with pain relief needs.
  • ✓Cooling temperature-regulating foam prevents heat buildup during sleep.
  • ✓Fiberglass-free and certified safe materials ensure a healthy sleep environment.

Cons

  • ✗Firm spring coils can be felt near the surface, potentially causing discomfort.
  • ✗Corners lack weight-bearing strength, limiting edge usability.
  • ✗Heavy weight of 110 pounds makes setup challenging without assistance.

Category mattresses

Brand SLEEP100

SLEEP100 King Mattress, 14 Inch 5-Zone Deep Sleep Firm Mattress with Review

The SLEEP100 5-Zone Deep Sleep Firm Mattress is a 14-inch hybrid mattress designed for those seeking firm support with targeted relief for the shoulders and lower back. It combines hundreds of pocket springs with temperature-regulating foam to minimize motion transfer and enhance cooling. This mattress is ideal for back and side sleepers experiencing discomfort, offering a balance of contouring and spinal alignment. With a fiberglass-free construction and certifications for safety, it provides a secure sleep environment. The inclusion of a 365-night trial and lifetime warranty adds value, making it a low-risk investment for improved sleep quality. Its firm feel caters to individuals preferring a supportive surface without excessive sinkage, while the hybrid design aims to deliver durability and comfort at an affordable price point under $300.

Product Overview

This mattress measures 80 x 76 x 14 inches in king size, weighing 110 pounds, and features a 5-zone design with reinforced support for the hips and lower back. It uses pocket springs that respond independently to body contours, reducing motion transfer and providing targeted relief. The Euro Top layer adds pressure relief and helps maintain spinal alignment, contributing to a spa-like sensation for sleepers. Materials are CertiPUR-US and OEKO-TEX Standard 100 certified, ensuring no toxic substances or fiberglass, and it meets fire-resistant CFR1633 standards. The mattress supports up to 800 pounds, making it suitable for plus-size individuals, with reinforced perimeter coils to prevent roll-off and expand sleep space. It arrives compressed in a box, requiring 24-72 hours to fully expand after unboxing, and caution is advised during the rapid unfurling process. Care involves using a protective encasement, and some reviewers recommend a cooling mattress topper for added softness. The firmness level is consistent across the sleep surface, with edges offering support but corners lacking weight-bearing strength, so it works best with beds that have footboards. Variants may include different sizes, though the king size is highlighted here, and the slick-type material cover facilitates easy cleaning.

Key Features

5-Zone Support System

  • ✓Targeted relief for shoulders and lower back enhances comfort for back and side sleepers.
  • ✓Reinforced center zone provides strong support for hips and lumbar area.
  • ✓Independent pocket springs contour to body shape, minimizing pressure points.

Cooling Temperature Regulation

  • ✓Innovative temperature-regulating foam reduces heat buildup during sleep.
  • ✓CertiPUR-US and OEKO-TEX certifications ensure safe, non-toxic materials.
  • ✓Slick-type material cover aids in heat dissipation and easy maintenance.

Fiberglass-Free Construction

  • ✓Absence of fiberglass and toxic materials offers a skin-friendly sleep environment.
  • ✓Meets fire-resistant CFR1633 standard for added safety.
  • ✓OEKO-TEX Standard 100 certification confirms material purity.

365-Night Home Trial

  • ✓Industry-leading trial period allows full-year risk-free testing.
  • ✓Dedicated support team provides solutions within 24 hours for any issues.
  • ✓Enables buyers to assess comfort and support without long-term commitment.

Lifetime Warranty

  • ✓Forever warranty covers the mattress for as long as it is owned.
  • ✓Reflects manufacturer confidence in product durability and quality.
  • ✓Provides peace of mind against defects and wear over years of use.

Hybrid Design with Pocket Springs

  • ✓Hundreds of pocket springs reduce motion transfer for undisturbed sleep.
  • ✓Combines spring support with foam comfort for balanced firmness.
  • ✓Reinforced 2.1-2.3 mm perimeter coils prevent roll-off and maximize sleep space.

Euro Top for Pressure Relief

  • ✓Euro Top layer alleviates pressure points and promotes spinal alignment.
  • ✓Delivers spa-like sensations, enhancing overall sleep quality.
  • ✓Provides edge-to-edge support for sitting or lying on the mattress edges.

Affordable Under $300 Price

  • ✓Cost-effective option uses top-tier materials for health and comfort.
  • ✓Ideal for budget-conscious buyers seeking firm hybrid support.
  • ✓Comparable quality to higher-priced mattresses without the premium cost.

Design & Build

The SLEEP100 mattress features a 14-inch hybrid construction with a 5-zone design that targets specific body areas for enhanced support. It combines hundreds of pocket springs with temperature-regulating foam, all encased in a fiberglass-free, CertiPUR-US and OEKO-TEX certified cover. The Euro Top adds a plush layer for pressure relief, while reinforced perimeter coils at 2.1-2.3 mm thickness prevent roll-off and expand usable sleep space. The slick-type material cover is durable and easy to clean, contributing to a low-maintenance build. Aesthetics include a clean, modern look suitable for various bedroom styles, with the king size measuring 80 x 76 x 14 inches and weighing 110 pounds, requiring careful handling during setup. The mattress arrives compressed in a box, expanding fully within 24-72 hours, and reviewers note the rapid unfurling process necessitates caution and adherence to the manual.

Durability is emphasized through the lifetime warranty and use of safe, top-tier materials. The pocket springs are designed to respond independently, maintaining shape over time and reducing sagging. However, some reviewers mention that the firm spring coils can be felt near the sleep surface, potentially affecting comfort without a topper. The corners lack weight-bearing strength, making it best paired with beds that have footboards to avoid sitting on edges. Cleaning and maintenance are straightforward with the protective encasement recommended by users, and the absence of odors post-expansion is a noted positive. The hybrid build balances support and comfort, aiming for long-term resilience, though the heavy weight may pose challenges for solo setup or older individuals.

Performance

In terms of support, this mattress delivers a firm feel that reviewers praise for spinal alignment and back pain relief. The 5-zone system provides targeted lumbar and shoulder support, reducing discomfort for side and back sleepers. Motion isolation is effective due to the independent pocket springs, minimizing disturbances for partners. Temperature regulation performs well, with cooling foam preventing heat buildup; one reviewer slept comfortably in 78°F conditions without overheating. The Euro Top enhances pressure relief, offering a balanced surface that avoids excessive sinkage. However, some users find the firmness too intense, noting that spring coils can be felt against hips and shoulders, leading them to add a mattress topper for added softness. The edges provide support for sitting, but corners are weak, so careful use is advised to maintain integrity.

Leak resistance and condensation are not applicable, but durability aspects include resilience to sagging and maintaining shape over time. Reviewers report no strange odors after expansion, and the materials hold up well with proper care. The mattress supports up to 800 pounds, catering to plus-size individuals without compromising support. Trade-offs include the heavy weight of 110 pounds, which can make setup difficult, especially for seniors or those with back issues. Cup-holder fit is irrelevant, but the firmness may require an adjustment period; one user experienced slight rib pain for two nights when transitioning from a softer mattress. Overall, performance is consistent with a firm hybrid design, offering reliable support and cooling, though individual comfort preferences may necessitate additional accessories like toppers.

Pros and Cons

Pros

  • ✓Firm support ideal for back and side sleepers with pain relief needs.
  • ✓Cooling temperature-regulating foam prevents heat buildup during sleep.
  • ✓Fiberglass-free and certified safe materials ensure a healthy sleep environment.
  • ✓365-night trial allows extensive testing without financial risk.
  • ✓Lifetime warranty provides long-term coverage and peace of mind.
  • ✓Affordable price under $300 offers value compared to premium mattresses.
  • ✓Effective motion isolation reduces disturbances for couples.
  • ✓Euro Top enhances pressure relief and spinal alignment.
  • ✓Supports up to 800 pounds, suitable for plus-size individuals.
  • ✓No strong odors after expansion, contributing to a pleasant setup experience.

Cons

  • ✗Firm spring coils can be felt near the surface, potentially causing discomfort.
  • ✗Corners lack weight-bearing strength, limiting edge usability.
  • ✗Heavy weight of 110 pounds makes setup challenging without assistance.
  • ✗May be too firm for some users, requiring a mattress topper for softness.
  • ✗Customer service for returns can be unresponsive, as noted by a reviewer.
  • ✗Adjustment period needed for those transitioning from softer mattresses.
  • ✗Not ideal for beds without footboards due to weak corners.
  • ✗Rapid unfurling during expansion requires caution to avoid injury.
  • ✗Limited information on long-term durability beyond warranty claims.
  • ✗Some reviewers report the need for additional cooling accessories with certain covers.

Written by Sleep Mattress Guide Editorial Team. We research mattress specs, aggregate verified customer reviews, and distill it into clear buying advice.

(3) Comments

Enhanced Sleep Experience with a Mattress Topper
We unpacked the 12-inch mattress immediately upon arrival, placed it in a protective encasement, and let it expand fully for three days as advised before use. As a first-time hybrid mattress user, I may be more critical in my assessment. While the materials felt soft and looked appealing, I question their long-term durability. The firm spring coils seemed too close to the surface, causing discomfort against my hips and shoulders. Adding a 4-inch cooling gel pad softened the mattress significantly, resulting in a very comfortable sleep. (Yes, the mattress is oriented correctly.) This mattress is ideal for beds with footboards; without them, sitting on the corners is risky due to their lack of weight-bearing strength, especially for those who might struggle to get up from the floor. The euro top provides excellent edge-to-edge support, allowing you to sit or lie on the middle edges comfortably. After two nights, I noticed no odors or defects, and I sleep soundly, waking up refreshed and pain-free. With the topper, this purchase was worthwhile, offering firm support at a reasonable price, backed by a satisfaction guarantee and lifetime warranty, making it a reliable choice.
Excellent firm mattress at a great value
This mattress is very firm, ideal for those who prefer firmness. It met my expectations perfectly, providing comfort and a good night's sleep with excellent back support. Unlike foam mattresses that contour to your body, it maintains support for proper spine and body alignment.
Excellent Value Purchase
Initially, I found this mattress too soft as I typically prefer very firm ones. However, after sleeping on it for several nights, I discovered that while it feels soft when first lying down, it maintains its firmness throughout the night. I enjoy the cozy, cradled sensation it provides. I bought it for our guest room and didn't want to spend a fortune. Compared to beds costing thousands of dollars, this one offers impressive quality at a significantly lower price.

Product Specifications

Product Dimensions 80 x 76 x 14 inches
Item Weight 110 pounds
Manufacturer SLEEP100
ASIN B0FHTQTFG9
Item Model Number cb5cad50-2a92-498c-aafd-43a81ec11aa8
Date First Available July 17, 2025
Age Range Description ALL-AGE
Mattress Type Hybrid
Firmness Level Firm
Certifications CertiPUR-US, OEKO-TEX Standard 100
Fire Resistance Standard CFR1633
Trial Period 365 nights
Warranty Lifetime
Maximum Weight Capacity 800 lbs
Cover Material Slick-type material
Expansion Time 24-72 hours

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