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Thursday, November 5, 2026

Mattresses

Best Slumbercool Mattress King Mattresses: 2 Spec-Based Picks

We compare 2 Slumbercool king mattresses using only published specifications. Review coil counts, firmness levels, and thickness to find the right bed for your sleep style.

By TierBuy Editorial Team

5 min read

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Finding the best slumbercool mattress king mattresses requires looking at the published specs. We compared 2 models to help you choose based on data, not marketing. Our top pick is the Slumbercool MAX 3Z Medium King Mattress. It leads because its 13-inch height and 884 pocketed coils offer balanced support for couples. Each selection here relies strictly on the specifications provided by the manufacturer. This guide helps you decide which mattress matches your specific sleep needs and room dimensions.

Choose Firmness Based on Sleep Style

Your choice depends on firmness and thickness. The MAX 3Z Medium offers a 13-inch profile with balanced support for couples. The MAX Hybrid 3Z Pro Plush provides a 14-inch height with gel cooling for side sleepers. Check the firmness rating first. Match the thickness to your bed frame height. This ensures proper support and comfort for your specific needs.

#ProductBest forPrice
1Slumbercool MAX 3Z Medium King Mattress Best overallcouples and combination sleepers needing balanced support
2SlumberCool MAX Hybrid 3Z Pro Plush King Mattress Best plushside sleepers wanting plush comfort

The best fit for you

  • You want balanced support for couples and combination sleepers – Slumbercool MAX 3Z Medium King Mattress – It features 884 pocketed coils and three zoned layers for balanced support.
  • You are a side sleeper wanting plush comfort and pressure relief – SlumberCool MAX Hybrid 3Z Pro Plush King Mattress – It offers plush comfort with 1,044 coils and cooling gel for pressure relief.
  • You prefer a medium firmness level for general use – Slumbercool MAX 3Z Medium King Mattress – This model provides a medium feel with a 13-inch thickness.
1Best overall
Slumbercool MAX 3Z Medium King Mattress

Slumbercool MAX 3Z Medium King Mattress

Best for: couples and combination sleepers needing balanced support

Size
King
Mattress Size
King
Thickness
13 inches
Firmness
Medium
Coil Type
Pocketed coils
Cooling Tech
GlacierTex MAX, Gel Memory Foam

This 13-inch King mattress pairs an 884 pocketed-coil core with targeted three-zone support. You get a GlacierTex MAX cover and a TheraGEL lumbar band that balances shoulder and hip alignment. Its medium firmness provides balanced resistance and motion isolation, making it suitable if you switch sleep positions or share your bed with a partner.

Pros
  • 884 individually wrapped pocketed coils isolate motion
  • Three-zone design with dedicated TheraGEL lumbar support
  • GlacierTex MAX cover with AirFiber quilting promotes airflow
  • Fiberglass-free construction compatible with adjustable bases
Cons
  • Weighs 115 pounds, making it difficult to lift or rotate alone
  • Has a lower 13-inch profile than 14-inch hybrid models on the list
Good fit if
  • You want a balanced medium feel suited for multiple sleeping positions.
  • You need targeted lower-back reinforcement without an overly firm surface.
  • You share a King bed and want pocketed coils to limit motion transfer.
Skip if
  • You prefer an extra-deep plush top with a softer sink.
  • You want a taller 14-inch profile for your bed frame.

Verdict: Slumbercool MAX 3Z Medium King Mattress delivers balanced support across 884 pocketed coils and three zoned layers for couples and combination sleepers.

2Best plush
SlumberCool MAX Hybrid 3Z Pro Plush King Mattress

SlumberCool MAX Hybrid 3Z Pro Plush King Mattress

Best for: side sleepers wanting plush comfort

Size
King
Mattress Size
King
Thickness
14"
Firmness
Plush
Mattress Type
Hybrid
Coil Type
Pocketed coils

This 14-inch hybrid mattress offers plush comfort with a GlacierTex MAX cooling cover and gel memory foam. It uses 1,044 pocketed coils in a 3Z support system to lift the lower back and stabilize edges. The TheraGEL foam adds mineral-infused contouring. At 130 pounds, it is a substantial build for a King size. It suits sleepers who want deep pressure relief and a cool surface.

Pros
  • 14-inch height for substantial cushioning
  • 1,044 pocketed coils for edge support
  • GlacierTex MAX cooling cover with extra yarns
  • TheraGEL mineral-infused memory foam
Cons
  • 130-pound weight makes it heavy to move
  • Plush firmness may not suit back sleepers
Good fit if
  • You prefer a deep, plush sleep surface
  • You need strong lower back support
  • You sleep hot and want cooling yarns
Skip if
  • You prefer a firm, supportive feel
  • You need a lightweight mattress for frequent moves

Verdict: Slumbercool MAX 3Z Pro Plush King delivers plush comfort with 1,044 coils and cooling tech. It fits side sleepers who want pressure relief and a cool surface.

Specifications side by side

SpecSlumbercool MAX 3Z Medium King MattressSlumberCool MAX Hybrid 3Z Pro Plush King Mattress
Mattress SizeKingKing
Thickness13 inches14"
FirmnessMediumPlush
Mattress Type–Hybrid
Coil TypePocketed coilsPocketed coils
Cooling TechGlacierTex MAX, Gel Memory FoamGlacierTex MAX, Gel Memory Foam
FeaturesCooling Gel, Pocket Coils, Motion IsolationCooling Gel, Pocket Coils, Motion Isolation
UsePressure ReliefPressure Relief
SizeKingKing
Dimensions80 × 76 × 13 inches80 × 76 × 14 inches
Weight115 pounds130 pounds
ColorBlack & WhiteBlack & White
ModelMAX-MED-KHYB-PROFIRM-CK

How to Choose the Right King Mattress

Match Firmness to Sleep Style

Select firmness based on your primary sleeping position. Side sleepers often need plush surfaces to relieve pressure on hips and shoulders. The Slumbercool MAX Hybrid 3Z Pro Plush offers this soft feel with gel cooling. Combination sleepers or couples may prefer medium support for balanced alignment. The MAX 3Z Medium provides this neutral feel. Check the firmness rating in the specs to ensure it matches your body weight and sleep habits for proper spinal support.

Check Mattress Thickness

Thickness affects how the mattress feels and fits in your bedroom. Thicker profiles often provide more cushioning and deeper support layers. The MAX 3Z Medium stands at 13 inches, offering a standard height for easy bed sheet fitting. The MAX Hybrid 3Z Pro Plush is slightly taller at 14 inches. This extra inch may provide additional comfort layers for heavier individuals. Measure your bed frame clearance to ensure the height works with your existing bedding and furniture arrangement.

Evaluate Coil Count

Pocketed coil counts influence support and motion isolation. Higher counts generally mean more targeted support across the surface. The MAX 3Z Medium includes 884 pocketed coils for consistent support. The MAX Hybrid 3Z Pro Plush features 1,044 coils for enhanced durability and pressure relief. More coils can help reduce motion transfer between partners. Compare these numbers if you share your bed with a restless sleeper or prefer a more structured feel under the comfort layers.

Consider Weight and Handling

Mattress weight impacts setup and rotation. Heavier models require more effort to move. The MAX 3Z Medium weighs 115 pounds, making it manageable for one person to rotate. The MAX Hybrid 3Z Pro Plush is heavier at 130 pounds due to its additional coil count and materials. Plan for two people during setup if you choose the heavier option. This weight difference is negligible for long-term use but matters during initial placement and future repositioning.

Review Size Dimensions

All listed models are King size, measuring 76 inches wide by 80 inches long. This standard width provides ample space for couples. Ensure your bedroom has enough clearance around the bed for movement. The consistent length fits standard King sheets. Verify that your existing bed frame supports the width and weight. Both models share these exact dimensions, so space planning remains the same regardless of firmness or thickness choice.

Frequently asked questions

Which Slumbercool King mattress is best for couples?

The Slumbercool MAX 3Z Medium King Mattress is the best overall choice for couples. It features 884 pocketed coils and three zoned layers to provide balanced support. This design helps stabilize movement and accommodates combination sleepers who change positions. Its 13-inch height and medium firmness create a stable surface for two people.

Is there a plush option in the Slumbercool King lineup?

Yes, the Slumbercool MAX Hybrid 3Z Pro Plush King Mattress offers a plush feel. It contains 1,044 coils and uses cooling gel technology to maintain a cool surface. This model is ideal for side sleepers who need pressure relief on hips and shoulders. Its 14-inch height provides extra cushioning compared to other options.

How thick are the Slumbercool King mattresses?

The Slumbercool King mattresses range from 13 to 14 inches in thickness. The MAX 3Z Medium model stands at 13 inches tall. The MAX Hybrid 3Z Pro Plush model is slightly taller at 14 inches. This extra height in the plush version adds to its pressure-relieving comfort layer for side sleepers.

Do these mattresses use pocket coils?

Both top picks use pocketed coil systems for support. The MAX 3Z Medium includes 884 pocketed coils. The MAX Hybrid 3Z Pro Plush features 1,044 coils. These individual coils respond independently to your body shape, which helps isolate motion and provide targeted support across the 76-inch width of the King size.

Which Slumbercool King mattress is best for side sleepers?

The Slumbercool MAX Hybrid 3Z Pro Plush King Mattress is best for side sleepers. Its plush firmness level relieves pressure on hips and shoulders. The 1,044 coils and cooling gel enhance comfort and temperature regulation. This combination ensures a soft surface that contours to your body while keeping you cool throughout the night.

What are the dimensions of a Slumbercool King mattress?

All Slumbercool King mattresses measure 76 inches wide and 80 inches long. The MAX 3Z Medium is 13 inches high and weighs 115 pounds. The MAX Hybrid 3Z Pro Plush is 14 inches high and weighs 130 pounds. These standard King dimensions fit most King-size bed frames and allow ample space for two sleepers.

See also

How these reviews are put together

  • 1,107reviews published
  • 2,271products with a buyer rating
  • 2,222products with listed features
  • 87brands covered

Every number, star and price on this site is read from the Amazon product listing. We do not run lab tests of our own, so scores here are out of 10, based on listed specifications and buyer feedback, not a verdict from a test bench. Prices change without notice; check the listing before buying.

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