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4 Inch Sofa Bed Mattress Queen Size 72" x 58", White & Blue

Based on 138 reviews
Condition: New
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$119.99
Holiday Deal · 20% off was $149.99

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Availability: In Stock.
Fulfilled by Wellynap-Direct

Arrives Nov 15 – Nov 17
Order within 13 hours and 46 minutes

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At a glance

Condition
New
Color
White & Blue
Item Thickness
4 in
Size
Queen
Model
20DGTW-U5A4Q-US11-New
Dimensions
72 x 58 x 4 in
Weight
18.1 lb
In the box
Gel Memory FoamHigh Density FoamRemovable Cover

Features 5

  • Gel-Infused Memory Foam for Cool & Comfortable Sleep: Features a 4-inch pressure-relieving construction (0.5" gel memory foam top layer + 3.5" high-resilience foam base) that delivers the perfect balance of plush softness and firm support. The gel infusion actively dissipates body heat, regulating sleep temperature to prevent overheating, ensuring a cool, dry, and restful night's sleep for you and your guests.
  • Premium Quality with Trusted Certifications: Certified by both CertiPUR-US and OEKO-TEX, guaranteeing that every componentfrom foam to fabricis free from harmful substances. Rigorously tested for safety, durability, and environmental responsibility, this mattress offers peace of mind and long-lasting reliability for your home.
  • 4-Layer Construction for Stability & Longevity: Engineered with a thoughtful 4-layer design a soft breathable knit fabric cover for skin comfort, a 0.5" gel memory foam layer for pressure relief, a 3.5" high-density high-resilience foam core for sturdy support, and a non-slip bottom fabric that keeps the mattress firmly in place on sofa frames or bed platforms, even during restless sleep.
  • Removable & Machine-Washable Cover for Easy Care: Features a full-zip removable cover that can be simply taken off and tossed in the washing machine for quick, hassle-free cleaning.

Description

Can this mattress be used on a sofa bed? Yes, this mattress is designed for versatile use, including on sofa beds. It is foldable and fits standard sofa bed frames, making it ideal for space-saving in guest rooms, living rooms, RVs, and boats. Is it good for side sleepers? This mattress is generally considered comfortable and supportive for side sleepers. The 4-inch gel memory foam provides pressure relief, which is beneficial for side sleepers who need cushioning for their shoulders and hips. Is it easy to fold? Yes, this mattress is designed for easy storage and can be folded neatly into a sofa bed frame. Is it easy to clean? Yes, the mattress is designed for easy cleaning and maintenance. It comes with a removable and washable cover, which allows for hassle-free cleaning. How long does it take for the mattress to fully expand after unboxing? It typically takes 24-48 hours for the mattress to fully expand after unboxing.

Specs 27

Brand Wellynap
Size Queen
Product Dimensions 72"L x 58"W x 4"Th
Item Weight 18.1 pounds
Item Firmness Description Medium
Top Style Tight Top
Cover Material Polyester
Number of Layers 4

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 15 – Nov 17

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Comfortable and Great for Guests
Color: White Item Thickness: 4 Inches Size: Queen
This mattress is very comfortable and a great option for a sofa bed or guest space. The 4-inch thickness provides a nice balance of comfort and support without being too bulky. It was easy to set up and expanded nicely. I’m very happy with the quality and comfort for the price.
Reviewed in the United States on August 18, 2026 by Robert Boxley

Fabulous mattress
Color: White Item Thickness: 4 Inches Size: Queen
Fit perfectly on my queen size sleeper sofa. Wayyy more comfortable than the original mattress! Love this!
Reviewed in the United States on July 8, 2026 by debi bender

Great mattress!
Color: White Item Thickness: 4 Inches Size: Full
Bought to replace old mattress on pull out sofa. This so comfortable. So much better than the mattress that came with the sofa!
Reviewed in the United States on July 25, 2026 by k harlow

Great
Fit great! Couch closed up nice. Perfect for overnight guest.
Reviewed in the United States on July 10, 2026 by DAWN

Comfortable
Color: White Item Thickness: 4 Inches Size: Queen
Fit our queen-sized sofa bed well. Seems to be comfortable.
Reviewed in the United States on July 5, 2026 by Richard Flora

Comfort
Color: White Item Thickness: 4 Inches Size: Full
Fits hide-a-way full couch bed fine. Comfy to lay on. Only draw back, nothing to tie it onto the springs, hence it slides off.
Reviewed in the United States on July 12, 2026 by DOUG DELONG

Great Sofa Sleeper!!!
Worked great for our camper sofa sleeper. Got many nights of rest on it.
Reviewed in the United States on August 8, 2026 by Darrel Broten

Quite impressed
Color: White Item Thickness: 4 Inches Size: Full
Bought this for an rv camper sleeper sofa. Impressed with the quality of product and though we haven't slept on it yet it really improved the comfort of the couch. Clean, no smell and puffed up as advertised. Price was extremely reasonable also!
Reviewed in the United States on June 5, 2026 by rlmama
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