Prime Day deals are live! View Deals
Search  for anything...

4 Inch Gel Memory Foam Sofa Mattress Full Size, CertiPUR-US Certified, with Removable Washable Cover, for Guest Rooms, Sofas, RVs & Boats

  • Based on 72 reviews
Condition: New
Checking for product changes
$119.99 Why this price?
Prime Day Deal · 48% off was $229.99

Buy Now, Pay Later


As low as $20.00 / mo
  • – 6-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

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: In Stock.
Fulfilled by Amazon

Arrives Thursday, Jul 10
Order within 16 hours and 55 minutes
Available payment plans shown during checkout

Color: White


Item Thickness: 4 Inches


Size: Full


Features

  • 4-Inch Gel Memory Foam: Provides maximum comfort and support, ensuring a perfect sleep climate for you and your guests.
  • Premium Quality & Certifications: CertiPUR-US and OEKO-TEX certified, guaranteeing safety, durability, and environmental responsibility. 4-Layer Construction: Features a 0.5-inch gel memory foam top layer, 3.5-inch high resilience foam base, soft knit fabric cover, and anti-slip bottom fabric for stability and longevity.
  • Easy Storage Design: Folds neatly into your sofa bed frame for a tidy finish, making it ideal for space-saving in guest rooms, living rooms, RVs, and boats.
  • Machine Washable Cover: Removable zipper cover allows for hassle-free cleaning and maintenance, ensuring your mattress stays fresh and hygienic.
  • Versatile Use: Perfect for full and queen size sofa beds, spare rooms, living spaces, recreational vehicles, and marine environments. Full (72"L x 53"W) and Queen (72"L x 58"W) sizes available to fit most standard sofa bed frames.

Brand: Wellynap


Item Weight: 16.5 Pounds


Color: White


Special Feature: Foldable


Arm Style: Track


Size: Full


Material: Memory Foam


Included Components: /


Fill Material: Memory Foam


Item Firmness Description: Medium Firm


Brand: Wellynap


Item Weight: 16.5 Pounds


Color: White


Special Feature: Foldable


Arm Style: Track


Size: Full


Material: Memory Foam


Included Components: /


Fill Material: Memory Foam


Item Firmness Description: Medium Firm


Product Dimensions: 72 x 53 x 4 inches


Item Weight: 16.5 pounds


Manufacturer: Wellynap


Country of Origin: Korea, Republic of


Item model number: U2A


Date First Available: December 27, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jul 10

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


  • Deserve it
Color: Navy Blue Item Thickness: 10 Inches Size: Queen
Excellent Memory Foam Mattress I'm really happy with my 10-Inch Memory Foam Queen Mattress. The quality is excellent, and the navy blue color looks great in my bedroom. The mattress provides fantastic support, conforming to my body and relieving pressure on my shoulders and hips. The cooling feature works well, keeping me comfortable throughout the night. Setup was quick and easy. I highly recommend this mattress for anyone seeking comfort and support. ... show more
Reviewed in the United States on May 28, 2025 by Shelly S.

  • 💜
💜
Reviewed in the United States on May 20, 2025 by Beck

  • Sleeps great
Color: Pure White Item Thickness: 10 Inches Size: King
This is a really good mattress, really comfortable
Reviewed in the United States on April 25, 2025 by Jacenthia Burks

  • Good for the buck
Color: Pure White Item Thickness: 10 Inches Size: King
Good, soft, everything what it describes. The only downfall from a 5 ⭐️ is that the corners didn’t fluff up they stayed squished.
Reviewed in the United States on May 12, 2025 by Desiree Garcia

  • Excelente
Muy bien
Reviewed in the United States on April 30, 2025 by Rosana Machado Leyva

  • Wonderfully Amazing
It has great comfort for my back
Reviewed in the United States on March 31, 2025 by Valerie

  • Comfy Mattress
This mattress was very easy to open and set up. I have to say it is one of the most comfortable mattresses I have ever had. I would definitely purchase again.
Reviewed in the United States on February 27, 2025 by Ollie

  • So comfortable!
Bought it for a guest bed and everyone who has slept on it says it is just the right firmness! Thought the price was reasonable. And it expanded for us as soon as we unwrapped it!
Reviewed in the United States on December 28, 2024 by Judy B

Can't find a product?

Find it on Amazon first, then paste the link below.