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DUMOS California King 3-Inch Gel vs DUMOS Mattress Toppers Memory Foam: Spec Comparison

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When you compare the dumos california king 3 inch gel vs mattress toppers memory foam options, you see two soft, gel-infused toppers from the same brand. Both use CertiPUR-US certified memory foam and feature breathable polyester covers with elastic straps. The main difference lies in their size and thickness. One is a large, three-inch topper for a California King bed, while the other is a four-inch topper for a Full-sized bed. You must match the dimensions to your specific mattress.

Key differences

AspectDUMOS California King 3-Inch Gel TopperDUMOS 4-Inch Full Gel Memory Foam
SizeCalifornia King (72 x 84 inches)Full (54 x 74 inches)
Thickness3 inches4 inches
Weight18.3 pounds15.6 pounds
Model NumberDO2153H-TPHM-3CKDO2153H-TPHM-4F

Which one should you choose?

Choose DUMOS California King 3-Inch Gel Topper if

  • You have a California King mattress and need a 3-inch topper.
  • You prefer a slightly lighter topper that weighs 18.3 pounds.
  • You want a product explicitly listed for bed use with a 3-inch profile.

Choose DUMOS 4-Inch Full Gel Memory Foam if

  • You have a Full-sized bed that requires a 54 x 74 inch topper.
  • You want a thicker 4-inch layer for deeper cushioning.
  • You need a topper that is also suitable for use on a couch or sofa.

Verdict: Choose Product A if your bed is a California King and you prefer a 3-inch profile. Choose Product B if you have a Full-sized bed or want a thicker 4-inch cushion. Both offer similar cooling and comfort features, so your choice depends entirely on your mattress dimensions and desired thickness.

Spec Comparison of DUMOS Toppers

Thickness choice

Edge: DUMOS 4-Inch Full Gel Memory Foam

The DUMOS California King 3-Inch Gel Topper offers a 3-inch profile, while the DUMOS 4-Inch Full Gel Memory Foam provides a thicker 4-inch layer. Both products list a 4-inch option in their variations, but the specific SKUs being compared differ in height. A thicker topper generally adds more cushioning and sink-in feel. You should choose the 3-inch version if you prefer a moderate lift. The 4-inch model suits those seeking deeper pressure relief. This difference affects how the topper interacts with your existing mattress firmness.

Mattress size fit

Edge: Tie

Size compatibility is the primary distinction between these two items. The California King model measures 72 inches wide by 84 inches long. The Full size topper is narrower at 54 inches wide and 74 inches long. You must match the topper dimensions to your bed frame. Using the wrong size leads to slipping and uneven support. The California King topper is designed for larger beds common in master suites. The Full size topper fits standard guest rooms or smaller beds. Check your mattress dimensions carefully before purchasing either option.

Product weight

Edge: DUMOS California King 3-Inch Gel Topper

Weight impacts handling and stability. The California King 3-Inch Gel Topper weighs 18.3 pounds. The 4-Inch Full Gel Memory Foam weighs 15.6 pounds. The larger California King topper is heavier due to its greater volume of foam, despite being thinner. The Full size topper is lighter because it covers a smaller surface area. Heavier toppers may stay in place better on smooth sheets. Lighter toppers are easier to lift for cleaning or rotating. Consider your strength when deciding which size you will manage regularly.

Cooling technology

Edge: Tie

Both toppers share the same core cooling feature. Each product includes cooling gel infused into the memory foam core. This gel helps dissipate body heat during sleep. Both also feature breathable polyester covers designed for airflow. The California King topper explicitly mentions an anti-slip backing and elastic straps in its key specs. The Full size topper lists similar features in its features section. You get identical thermal regulation performance from the foam material itself. Neither product offers active cooling fans or electronic components.

Cover attachment method

Edge: Tie

Both models use a removable cover secured by elastic straps and an anti-slip backing. The California King topper specifies a high-quality metal zipper for easy removal. The Full size topper also mentions a metal zipper in its feature list. This allows you to machine-wash the cover separately from the foam core. The elastic straps help keep the topper snug on the mattress. You do not need to adjust the topper frequently during the night. Both designs prioritize convenience and hygiene through this removable cover system.

Certification and safety

Edge: DUMOS California King 3-Inch Gel Topper

Safety certifications ensure the foam meets health standards. The California King topper explicitly lists CertiPUR-US certification in its key specs. This certifies the foam is made without harmful chemicals. The Full size topper does not list this certification in its provided data. However, both products come from the same brand and share similar construction. You should assume similar quality standards unless stated otherwise. CertiPUR-US certification is a key factor for buyers concerned about off-gassing. Check the packaging or product page for the Full size topper to confirm this detail.

Choose the right topper for your bed

California King owners seeking balanced comfort

Our pick: DUMOS California King 3-Inch Gel Topper

You have a California King bed, so you need a topper that fits the 84-inch length and 72-inch width perfectly. This 3-inch model provides a softer feel with cooling gel infusion. The removable cover stays in place with elastic straps, ensuring you get consistent support without shifting during the night.

Full size users wanting extra cushioning

Our pick: DUMOS 4-Inch Full Gel Memory Foam

If you sleep on a Full-sized bed, this 4-inch topper fits the 74-inch length and 54-inch width. The thicker profile offers deeper contouring for pressure relief. The soft memory foam cradles your body, while the breathable polyester cover helps regulate temperature. It is also suitable for use on sofas.

Shoppers preferring a lighter weight product

Our pick: DUMOS California King 3-Inch Gel Topper

This 3-inch California King topper weighs 18.3 pounds. The 4-inch Full size option weighs 15.6 pounds. If you prioritize a lighter overall package for easier handling or washing, the Full size 4-inch model is the lighter choice. Both feature machine-washable covers with metal zippers for simple maintenance.

The products compared

DUMOS California King 3-Inch Gel Topper

Best for: Soft, cooling pressure relief

Thickness
3"
Mattress Size
California King
Core Material
Memory foam
Cooling Technology
Cooling gel infused
Attachment Method
Elastic straps, anti-slip backing
Cover Type
Removable machine-washable cover

View on Amazon: DUMOS California King 3-Inch Gel Topper Affiliate link

This DUMOS topper adds 3 inches of cooling gel-infused memory foam to your California King bed. It measures 72 by 84 inches and weighs 18.3 pounds. The CertiPUR-US certified foam provides soft support. A removable, machine-washable cover with elastic straps keeps the topper in place. This setup suits you if you want pressure relief and a cooler sleep surface without changing your mattress.

Pros

  • 3-inch thick gel-infused memory foam core
  • Removable machine-washable polyester cover
  • CertiPUR-US certified foam
  • Elastic straps and anti-slip backing

Cons

  • Soft firmness may not support heavy weights
  • No adjustable firmness settings
  • 18.3 pounds is heavy to move

Good fit if

  • You want a cooler sleep surface
  • You need pressure relief for hips or shoulders
  • You prefer a soft, plush feel

Skip if

  • You need a firm sleep surface
  • You want adjustable firmness levels
  • You need a lightweight topper

Verdict: DUMOS 3-Inch Gel California King Topper offers a soft, cooling sleep surface for side sleepers. It fits you if you want to soften a firm mattress or relieve pressure points with gel-infused foam.

DUMOS 4-Inch Full Gel Memory Foam

Best for: full beds needing soft, cooling comfort

Thickness
4 inches
Mattress Size
Full
Core Material
Memory foam
Cooling Technology
Gel infused
Attachment Method
Elastic straps, anti-slip backing
Cover Type
Removable machine-washable cover

View on Amazon: DUMOS 4-Inch Full Gel Memory Foam Affiliate link

This DUMOS mattress topper adds 4 inches of soft memory foam to your bed. It measures 54 by 74 inches for a full-size frame. The foam is infused with cooling gel to help manage heat. A breathable polyester cover with elastic straps keeps the topper in place. You can remove the cover for washing. This setup offers pressure relief and a plush feel for full-sized sleeping surfaces.

Pros

  • 4-inch thickness provides significant cushioning
  • Cooling gel infusion helps regulate temperature
  • Breathable polyester cover is machine washable
  • Elastic straps prevent slipping during use

Cons

  • Limited to full-size beds only
  • Soft firmness may not support all sleepers
  • No specific density or foam type listed

Good fit if

  • You need a plush upgrade for a full bed
  • You prefer a soft sleeping surface
  • You want a removable, washable cover

Skip if

  • You own a queen or king size mattress
  • You require a firm support layer
  • You need a topper for a twin bed

Verdict: DUMOS 4-Inch Full Gel Memory Foam suits full-size owners seeking a soft, cooling layer. It delivers deep cushioning and easy maintenance for those who prioritize plush comfort over firm support.

Specifications side by side

Spec DUMOS California King 3-Inch Gel Topper DUMOS 4-Inch Full Gel Memory Foam
Thickness 3" 4 inches
Mattress Size California King Full
Core Material Memory foam Memory foam
Cooling Technology Cooling gel infused Gel infused
Attachment Method Elastic straps, anti-slip backing Elastic straps, anti-slip backing
Cover Type Removable machine-washable cover Removable machine-washable cover
Certification CertiPUR-US CertiPUR-US
Feature Cooling, Breathable Cooling, Breathable
Material Memory Foam Memory Foam
Color Blue Blue
Use not stated Couch
Firmness Soft Soft
Dimensions 84 × 72 × 3 inches 74 × 54 × 4 inches
Weight 18.3 pounds 15.6 pounds
Size California King 4 inch-Full
Model DO2153H-TPHM-3CK DO2153H-TPHM-4F

Frequently asked questions

Which DUMOS topper is better for side sleepers?

The DUMOS California King 3-Inch Gel Topper is the better choice for side sleepers. It is designed for soft, cooling pressure relief. The 3-inch thickness provides a plush surface that craves into your hips and shoulders. This helps align your spine while you sleep on your side.

What is the weight difference between the two toppers?

The California King 3-Inch Gel Topper weighs 18.3 pounds. The 4-Inch Full Gel Memory Foam topper weighs 15.6 pounds. The heavier California King model uses more foam to fill its larger dimensions. You will find the Full size topper lighter and easier to move when washing the cover.

Do both toppers come in blue color options?

Yes, both listed DUMOS toppers are available in blue. The California King 3-Inch Gel Topper features a blue cover. The 4-Inch Full Gel Memory Foam topper also comes in blue. You can choose either model without worrying about mismatched bedding colors if you prefer a cool blue aesthetic.

How thick is the California King DUMOS topper?

The DUMOS California King 3-Inch Gel Topper has a height of 3 inches. It measures 72 inches wide and 84 inches long. This specific thickness offers a soft feel that softens firm mattresses. It provides a noticeable layer of cushioning without adding excessive height to your bed frame.

Is the Full size topper suitable for couch use?

Yes, the DUMOS 4-Inch Full Gel Memory Foam is listed for couch use. It measures 54 inches wide and 74 inches long. The 4-inch thickness provides deep cushioning for seating. You can use it to upgrade your sofa comfort or place it on a full-size bed for extra softness.

What material is used in these DUMOS toppers?

Both toppers use memory foam as their primary material. They feature gel-infused foam for cooling and breathability. The California King model uses soft memory foam to relieve pressure points. The Full size model also uses soft memory foam for plush comfort. Both designs prioritize a cool and comfortable sleep surface.

See also