Your coupon has been activated.
Coupon Activated

You May Also Like

InnerSpace 4.5-inch Memory Foam Sofa Sleeper Mattress

Included Warranty: 10 year Limited Manufacturer
Select an option before changing warranty
You will earn $10.00 (5%) on this product with Club O Gold.




2% Rewards

Keep shopping on Overstock

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight



5% Rewards

Earn even faster

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight

Free Shipping

Never pay extra

Exclusive Rewards

Save big-- up to 40%

Starting at: $199.99
Free Shipping*
ITEM# 13368401
  • Delivery Estimate

    Select a Product Option to view shipping

    • Product Alerts

      Stay in the know! Choose which alerts you’d like to receive on this product.

    InnerSpace 4.5-inch Memory Foam Sofa Sleeper Mattress
    • Wishlists
    • Save for Later
    Made in USA


    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
    • Narrow queen: 4.5 inches high x 58 inches wide x 72 inches long
    • Queen: 4.5 inches high x 60 inches wide x 72 inches long
    • Large queen: 4.5 inches high x 64 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.

    Please note: This is the mattress only. Sofa is not included.
    30-Day Comfort Guarantee - If you are not satisfied with your purchase within 30 days, you may return your order for a refund. After 30 days, the mattress cannot be returned.


    Mattress Type Folding Memory Foam Sofa Beds
    Thickness 4.5 Inch
    Memory Foam Type Foam Memory Foam
    Density 2.5 Pound
    Support Medium
    Mattress Top Tight Top
    Holiday Deal Doorbusters
    Product Features Hypoallergenic Made in USA
    Recommended Foundation Type Adjustable
    Dimensions 52.0x72.0x4.5
    Warranty 10 year Limited Manufacturer
    Model Number SM-5272-OSK
    Country Of Origin United States

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Truly comfortable

      I could sleep on this as well as on a thicker mattress -- good quality, and very little smell (so the sleeper isn't poisoning herself). On the other hand, I couldn't fold it into my sleep sofa. Too thick and unyielding? Or is this sofa bed made only for its original airbed? However, I'm keeping it, because it's much more comfortable to actually sleep on. (Storing it when not in use for sleeping.)

      Read More
    • Perfect

      This is exactly what we were looking for. We were worried the mattress would be too big or too small, however it fits perfectly and is very comfortable!

      Read More
    • 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)!

      Read More
    • 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.

      Read More
    • Sofa sleeper mattress

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

      Read More
    • 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".

      Read More

    Questions & Answers

    Get your product questions answered right here.
    • Why did you choose this product?

      • Great product,great price!

      • It appears to be more comfortable than the one it is replacing.

      • The actual mattress in our sleep sofa is unbearable, we hope that this will make a big difference for our guests.

      Read more Read less
    • 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

      Read more Read less
    • 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 Tips & Inspiration

    Shipping & Returns


    3-5 Business Days *

    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.
    More Details

    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.
    Standard shipping details
    Expedited shipping details

    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.

    You May Also Like