Search  for anything...

4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Queen Size CertiPUR-US Certified (Sofa Not Included)

  • Based on 518 reviews
Condition: New
Checking for the best price...
$155.00 Why this price?

Buy Now, Pay Later


As low as $25.83 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: 20 left in stock
Fulfilled by Amazon

Arrives Saturday, Jul 4
Order within 16 hours and 35 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: Queen


Features

  • Queen size pull-out mattress measures 72"L x 58"W x 4.5"TH. The mattress is vacuum packed for easy transportation to family and friends. Please allow 24 to 72 hours for the mattress to return to its full shape, ensuring you enjoy quality sleep
  • Cold Gel Memory foam mattresses offer superior pressure relief and support by conforming to the body's pressure points.which involves incorporating a gel layer in the mattress to dissipate and absorb body heat. This effectively lowers the surface temperature of the mattress, delivering a cooler sleeping experience
  • Gel Memory foam mattresses are made of high-density memory foam, providing exceptional durability and longevity. has passed the OEKO-TEX certification CertiPUR-US certification.They retain their shape and resilience over time, delivering consistent support and comfort, thus extending the lifespan of the mattress
  • Our memory mattresses are not only suitable for folding sofa beds, but also compatible with other furniture or boats, campers&RVs. They can also be directly placed on the floor for use, suitable for various places you want
  • Memory Foam Sleeper Sofa bed Mattress combines a 2.5in firm polyurethane foam base with a 2in gel memory foam,memory foam mattresses are highly temperature-sensitive and adjust their firmness based on body heat. They become softer and more contouring to the body's curves, providing additional support and comfort

Brand: Rhyme source


Size: Queen


Product Dimensions: 72"L x 58"W x 4.5"Th


Item Firmness Description: Medium


Top Style: Gel Top


Cover Material: Polyester


Number of Layers: 2


Fill Material: Gel Memory Foam, High Density Foam, Memory Foam, foam


Weight Limit: 500 Pounds


Special Feature: Washable Material


Item Firmness Description: Medium


Number of Layers: 2


Weight Capacity Maximum: 500 Pounds


Additional Features: Washable Material


Construction Type: Memory Foam


Is Customizable?: No


Is Electric: No


Portable: Yes


Is Foldable: Yes


Size: Queen


Item Dimensions L x W x Thickness: 72"L x 58"W x 4.5"Th


Item Dimensions: 72 x 58 x 4.5 inches


Item Depth: 4.5 inches


top-style: Gel Top


Color: White


Style Name: Contemporary


Brand Name: Rhyme source


Model Name: 4.5 Inch Cold Gel Memory Foam Sofa Bed Mattress Replacement


Product Benefits: Superior pressure relief and support, maintaining proper spinal alignment


Model Number: 4.5 Inch


Manufacturer: Jinying10


Is Extendable: No


Age Range Description: Adult


Cover Material: Polyester


Fill Material: Gel Memory Foam, High Density Foam, Memory Foam, foam


Product Care Instructions: Hand Wash Only, Machine Wash


Mattress Comfort Layer Material: Gel Memory Foam


Material Type: Gel Foam, Memory Foam


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 4

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


  • Comfy addition to my hide a bed!
Size: Queen
Excellent mattress for my hide a bed. Thick, fairly firm, good value!
Reviewed in the United States on April 28, 2026 by Marisa D.

  • Thick pad is comfortable & a great value
Size: Queen
Purchased to replace a Q fold up mattress pad. Pad was easy to set up for day to day cushioning while we have kept the old spring mattress just in case there is a need for more than one guest bed. We scaled back to less GLA. It does fold & slide up under the back of the sofa bed. .
Reviewed in the United States on April 19, 2026 by Amazon Customer

  • BUYER BEWARE! PLEASE BE CAREFUL WITH THE MATTRESS COVER!
Size: Queen
This product should receive zero stars. The bed itself is comfortable enough but its listed as washable and that is completely false. This product or the mattress cover is not washable. You should not remove the mattress cover under any circumstances. There are not tags on the mattress or cover warning of this. This product uses fiberglass and once you remove the mattress cover, you could have major problems. I don't understand how this is even allowed. ... show more
Reviewed in the United States on May 4, 2026 by YOLO

  • No Springs Here!
Size: Queen
We’ve had a queen sleeper sofa in our den for many years now, mostly used in emergency situations. It was not the most comfortable because it was a mattress full of springs. When I recently got sick and had to limit use of the stairs, my daughter suggested replacing the mattress and it was the best thing I could have done. No Springs Here! I have to admit it is as comfortable, if not more so, than our primary mattress and adjustable bed that we spent thousands of dollars on. It has a bit of memory foam with a gel that actually does keep you cool. I’ve slept on the mattress with and without a board placed between the mattress and the metal poles and I could not feel the poles of the bed in either case. I don’t usually write recommendations, but I am so pleased with this mattress that brought my sleeper sofa into what feels like a luxury bed for me. I have not been able to stop telling my family and friends about this mattress, so thought I should share with you. ... show more
Reviewed in the United States on May 5, 2025 by Elle810

  • Comfortable but some parts don’t fully expand
Size: Queen
They say you’re suppose to give it a quite a few hours for it to be at the size it supposed to be but the whole point of buying it for the sofa is so that you can pull out the sofa bed and just sleep and then return to sofa position. Anyway, some parts have a sink and others don’t. But I guess it’s better than the spring mattress I had ... show more
Reviewed in the United States on April 2, 2026 by Vanna

  • 100% Recommend
Size: Queen
This mattress supersedes my expectations. We bought this for our RV trailer and it fits perfectly. Would buy again!
Reviewed in the United States on June 5, 2026 by Renee W.

  • Form & Comfortable
Size: Queen
This sofabed mattress is firm and comfortable. It might be a tiny bit short around the perimeter but it's stayed in place on the frame for us.
Reviewed in the United States on July 31, 2025 by GJODD

  • Make sure you take the sizes
Size: Full
It doesn't fit right for a full size sofa bed. It's what I call over sized.
Reviewed in the United States on April 11, 2026 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...