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

by Innerspace
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ITEM# 13368406
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Made in USA


ITEM#: 13368406

Ensure that impromptu house guests have a comfortable place to sleep with this InnerSpace sofa bed mattress. This deluxe queen-size sofa bed mattress features a construction using state-of-the-art memory foam, which contours to your body's shape and supports you all night long, relieving pressure points so you enjoy a more restful sleep.

  • Materials: 3-inch polyurethane base foam topped with 1.5 inches of high-density visco elastic memory foam
  • Density: 2.5 pounds
  • 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
  • Sofa NOT included

  • Standard queen: 4.5 inches high x 60 inches wide x 72 inches long
  • Narrow queen: 4.5 inches high x 58 inches wide x 72 inches long

Memory Foam Tips:
  • Remove from packaging within 72 hours of receipt 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 Specialty
Product Features Bed in a Box, Hypoallergenic, Made in USA
Recommended Foundation Type Adjustable
Size Queen
Dimensions 60.0x72.0x4.5
Warranty 10 year Limited Manufacturer
Model Number SM-5872-OSK
Country of Origin United States

Customer Reviews

5 Stars
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  • Most Helpful

  • InnerSpace 4.5 inch Memory Foam Sofa Mattress
    Verified Purchase

    Before purchasing this mattress, I checked many reviews. One review that really helped was that this mattress had no odor/smell to it when first opened. Some foam mattresses/foam toppers have a "new Foam" smell to them. Well, this mattress was completely odor-free which was a very important factor. Remember to measure the size of the queen frame since there are two different sized queen mattresses. It arrived very quickly in a medium sized box. Careful when opening not to cut anything. I purchased an *** waterproof mattress cover/pad (reason first mattress had to be thrown out!) Number one rule: always use a waterproof mattress pad to protect your mattress! This mattress is being used in a sofa bed in our livingroom. I let the mattress expand for about 3-4 days. The total thickness was more like 3.5 to 4 inches thick. I was so anxious to feel how the mattress felt that I slept on it for 3 nights in a row. I am average size 5'7" about 155#. I could not feel the bar of the sofa bed frame at all. It felt very comfortable and conformed to your shape. It is not as firm as a tempurpedic, it is cushier. This mattress makes your sofabed feel wonderful! its so comfy that I would love to replace any or all of my hideabed mattresses with this one! sweet dreams...zzzz

    Read More
  • This mattress is just what I hoped for.
    Verified Purchase

    I sleep on a sofa bed every night, and was having alot of discomfort in my legs, and could tell that my circulation was being cut off. The purchase of this mattress was the best decision I could have made, just wish I had done it sooner.

    Read More
  • Memory foam sofa bed mattress
    Verified Purchase

    This is a wonderful sofa bed mattress, especially compared to those usually supplied with a sofa bed. I found myself needing to sleep on the sofa bed for three months due to health circumstances and HAD to get rid of the supplied mattress. I actually slept well on this memory foam one. If I were a tall person, I would be less satisfied, as the mattress is a couple of inches shorter, expanded, than it is supposed to be and a bit less wide also. I really could not conveniently return it after I learned this, so I kept it. A short person like me would have no problem with the size.

    Read More
  • Most Recent

  • Not as firm as xpected
    Verified Purchase

    Comfortable but I expected it to be firmer. Currently used as a spare floor mattress - way too soft to place on top of a spring sofa pull-out.

    Read More
  • Guests love this mattress
    Verified Purchase

    The mattress that came with this bed used to be ok. But over the years, not so great. After replacing the mattress with memory foam some family members now open the bed out to lie on it to watch tv!

    Read More
  • MommaM
    Verified Purchase

    Bought this to replace a HORRIBLE mattress on our sofa bed. It made SUCH a difference. Would recommend this to anybody who has a sofa bed if you or your company sleeps more than one night on it. This was well worth the price.

    Read More
  • Super confortable for guests.
    Verified Purchase

    Your guests deserve a good mattress. My old mattress was in really bad shape. I had a memory foam topper on it and that helped, but this is so much better. If you have an old school sofa bed mattress, you should replace it with one of these. Your guests will that you!

    Read More
  • Positive Review: Quite comfortable
    Verified Purchase

    This is the second one we purchased. Great comfort for company. We want everyone to get a good nights sleep at our home. We own 2 sleeper sofas and this is the perfect fit. We highly recommend this mattress.

    Read More

Questions & Answers

  • Q:

    "What are the dimensions of the sofa ?"

    • A:

      Hello Max, we do apologize, the items used in the photo are props, additional information is not provided. This item features the mattress only. Thank you for shopping with us.

  • Q:

    "how wide is a narrow queen size sofa bed mattress"

    • A:

      Hello flobert, the narrow is approximately 4.5 inches high x 58 inches wide x 72 inches long. Thanks for shopping with us!

  • Q:

    "Why did you choose this product?"

    • A:

      Good reviews and offered the Narrow version of the Queen mattress.

    • A:

      I bought this mattress for my queen sofa before and it was and still is very comfortable. So now that my other queen sofa mattress has "had it",the old mattress will be replaced with this InnerSpace 4.5-inch Queen-size Memory Foam Sofa Sleeper Mattress.

    Read more Read less
  • Q:

    "I measured the existing sofa mattress and it is 63" wide.Will your 60" wide mattress be an good replacement?"

    • A:

      Hello, 88henry. Hope your day is going well. The 60 inch wide mattress should work out fine. Thank you for shopping with us and please feel free to contact us again with any further questions.

  • Q:

    "I'm 6'3 would I fit on this.."

    • A:

      Hello kevinlt, The mattress is 72" (6 ft), with your height being 75" (6'3") you may be uncomfortable. Thank you for shopping; let us know if you have any additional questions.

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.