InnerSpace 4.5-inch Memory Foam Full-size Sofa Sleeper Mattress

Included Warranty: 10 year Limited Manufacturer
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    InnerSpace 4.5-inch Memory Foam Full-size Sofa Sleeper Mattress
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    Made in USA

    This Innerspace memory foam mattress provides a solution to the uncomfortable sofa bed mattress. This memory foam mattress is designed to provide you and your guests with the best night's sleep possible.


    ITEM#: 13368401

    This Innerspace memory foam mattress provides a solution to the uncomfortable sofa bed mattress. This memory foam mattress is designed to provide you and your guests with the best night's sleep possible.

    • Materials: 3-inch polyurethane base foam and 1.5 inches of high-density visco elastic memory foam
    • Density: 2.5 lbs
    • Memory foam is resistant to dust mites and is naturally antimicrobial
    • Temperature sensitive foam adjusts to your body temperature so you stay warm
    • Improves circulation
    • Eliminates motion transfer
    • Never needs turning
    • Disperses your weight evenly
    • Designed for use with sofa beds
    • Meets all flammability standards
    • Organic cotton stretch knit cover included
    • Cover care instructions: Dry clean
    • Mattress only, sofa not included

    • Standard full: 4.5 inches high x 52 inches wide x 72 inches long
    • Wide full: 4.5 inches high x 54 inches wide x 72 inches long

    Memory Foam Tips:
    • Remove from packaging within 72 hours to maximize expansion.
    • This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
    • Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.

    The firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.

    Once opened this product is non-returnable.


    Mattress Type Folding Memory Foam Sofa Beds
    Thickness 4.5 Inch
    Memory Foam Type Foam Memory Foam
    Density 4 Pound
    Support Medium
    Mattress Top Specialty
    Product Features Antimicrobial Made in USA
    Dimensions 52.0x72.0x4.5
    Manufacturer Warranty 10 year Limited Manufacturer
    Materials Cotton-Poly / Memory Foam
    Model Number SM-5272

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Comfortable

      Mattress is very comfortable. It's super soft, so if you need something with a bit of firmness, purchase a different mattress. My only complaint would be the strong scent of the plastic the mattress arrives wrapped in. The scent stays in the mattress for a few weeks (and even permeates through the sheets)!

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    • Delightful replacement for 40-year-old mattress

      This mattress is a wonderful change from our 40-year-old (used only for guests or sick days) mattress. The mattress is firm, has excellent support, and fit right into the frame. We needed the wider version to fit our frame and were thankful that was offered.

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    • Sofa sleeper mattress

      Thisis a very good mattress for a sofa sleeper.Very comfortable

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    • Sofa bed is like new!

      This replacement mattress for my sofa bed transformed it into a very comfortable bed for visiting guests. The memory foam is very comfortable to sleep upon, and it folds up effortlessly when it is time to put it away. I have had positive feedback from my guests as to the comfort of the mattress, which is a huge improvement in response as compared to the mattress it replaced. I am very happy with this purchase!

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    • Wonderful mattress!

      I am amazed at the quality of this mattress! It used to be that sofa sleepers offered little sleep because of the metal bar that was part of the frame and seemed to protrude through the mattress! This mattress eliminates that. I bought this mattress for a used sofa we purchased for my daughter's room. Now she always has someplace for a friend to sleep when staying overnight!

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    • A nice upgrade

      I haven't slept on this myself, but my parents recently visited and slept on the mattress and reported it was a big improvement over the coiled spring mattress that came with the sleeper sofa. My father, who has had back surgery and is not slight of build, reported that he couldn't "feel the bar" and had no problems overnight which was quite a change from past visits. My sleeper sofa had smaller dimensions so my choice of mattresses was limited but I am very happy with this purchase, I would certainly buy it again. I am rating this 4 starts only because I don't have first-hand experience sleeping on this item but am sure it is at least "good".

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    Questions & Answers

    Get your product questions answered right here.
    • Innerspace shows "made in the USA" but are the components, including the foam and memory foam made in the USA?

      • Hello shskipper, this sofa sleeper is made in the US. I hope this information helps you, have a great day!

    • Hello- What is the weight of the foam mattress?

    • What are the dimensions of the couch? I see the dimensions for the mattress but not the couch.

      • The dimensions are : 52.0x72.0x4.5

      • what is the entire weight of couch and mattress and does couch come apart to get it in the home

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    • Should I leave the stretch knit cover on the mattress? If so, should I remove the staples that secure it to the mattress?

      • The cover is meant to be removeable as it has care instructions. Therefore, you will need to remove the staples.

    • what is the total with

      • The width of the wide full mattress is 54 inches and the width of the standard full mattress is 52 inches.

    Shopping Guides

    Shipping & Returns


    Usually leaves our warehouse in 1 business day. *

    Mattress Return Policy:

    Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
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    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    * For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.