InnerSpace 4.5-inch Full-size Foam Sofa Sleeper Mattress

by Innerspace
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ITEM# 14351300
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Made in USA


ITEM#: 14351300

This high-density sofa mattress by InnerSpace is designed for comfort and durability. Made using motion-transfer elimination technology, this mattress is durable and requires no turning or flipping. The mattress distributes body weight evenly to ensure that you remain comfortable throughout the night. It comes with a quilted cotton knit cover with a zipper that is removable and easy to clean.

  • Mattress measures 4.5 inches thick
  • Materials: High-Density Poly Foam
  • Cover is Quilted Cotton Stretch Knit with zipper
  • Designed to fit all standard size full sofa beds
  • Open cellular structure channels heat away from your body to keep you cool and comfortable
  • Improves circulation while reducing pressure points that can disrupt your sleep
  • Mattress eliminates motion transfer and uncomfortable pressure points
  • Never needs turning or flipping
  • Disperses your weight evenly
  • Mattress can be used with an existing frame
  • Meets all flammability standards
  • Durable non-quilt damask
  • Spot Clean as needed, Cover can be zipped off for dry cleaning
  • Dimensions: 54 inches wide x 72 inches long x 4.5 inches thick or 52 inches wide x 72 inches long x 4.5 inches thick

Please note: This is the mattress only. Sofa is not included.


Mattress Type Foam, Sofa Beds
Thickness 4.5 Inch
Memory Foam Type Foam
Support Medium
Mattress Top Specialty
Country of Origin United States
Product Features Bed in a Box, Made in USA
Recommended Foundation Type Platform
Size Full, Queen
Dimensions See Details
Warranty 5 year Manufacturer
Model Number OSK-SP5472-ECO
Country of Origin United States

Quality Rating

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Features for Rugs

See All Features

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Helpful

  • Comfy
    Verified Purchase

    Great comfort and fit was perfect for my sofa sleeper

    Read More
    tootsie48 Feb 13, 2013
  • Nice mattress!
    Verified Purchase

    Came so bundled up didn't think it would do the trick, but it did! Its not the top of the line, but if you don't use your sofa bed as a bed on a daily basis, it does just fine. We wanted it mostly to reshape the sofa when it IS folded up, since t was drooping... and it did! To sleep on you might want a little mattress pad... worth the price.

    Read More
    pennock Jan 12, 2013
  • Most Recent

  • Very comfortable for a sleeper sofa mattress
    Verified Purchase

    Everyone hated to sleep on our pullout sofa until I bought this mattress. Very comfortable, great value.

    Read More
    marcani Aug 24, 2017
  • Soft foam sleeper
    Verified Purchase

    This added more softness to our sofa sleeper. Guests say that it is very comfortable.

    Read More
    couchless Apr 19, 2016
  • Not Happy with the sale
    Verified Purchase

    The Mattress was Ok, but I miss read the AD I though the sofa & the mattress came together.

    Read More
    aliceharrell Sep 27, 2013
  • Mattress
    Verified Purchase

    I was a little afraid when receiving the box. But after unwrapping the wrap off the mattress my concerns was not a concern anymore. The mattress is very comfortable to sleep on.

    Read More
    bedroom1 Apr 11, 2013
  • Verified Purchase

    Read More
    bubby53 May 24, 2017

Questions & Answers

  • Q:

    "Why did you choose this product?"

    • A:

      I need to replace the one that came with the sofa. My guests were complaining it was un-comfortable. It was a spring mattress and I want to get away from the spring.

  • Q:

    "It says "it never needs to be flipped", but IS this reversible...can it be flipped over?"

    • A:

      Hello Persnlmgr, no, it is not recommended that this be flipped. Thanks for shopping with us!

  • Q:

    "I just bought a futon that needs a 52" wide mattress and will tri fold (it's more like a loveseat). Do you think this would work for that kind of seems to fold, since it goes in the couch?"

    • A:

      Hello gaerb, We don't recommend it. We suggest buying a mattress that goes with the futon you purchased. Thank you for shopping with us.

  • Q:

    "How much does this unit weigh?"

    • A:

      Thank you calgon911 for the question about the InnerSpace Eco Foam 4.5-inch Full-size Sofa Sleeper Mattress. The item weighs 25 pounds. Thank you for shopping

  • Q:

    "How does the memory foam do after being folded up in the sofa?"

    • A:

      This is very durable,never needs turning or flipping.

  • Q:

    "what are the dimensions of the mattress"

    • A:

      The mattress is a full size mattress 54" wide x 75" long.

  • Q:

    "i need the sofa price"

    • A:

      This is just the mattress for sale.

Shopping Tips & Inspiration

Shipping & Returns

Contact Information
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

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

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.