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

Made in USA
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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#: 13368406

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 topped with 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
  • 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.

Once opened this product is non-returnable.


Dimensions 60.0x72.0x4.5
Manufacturer Warranty 10 year Limited Manufacturer
Materials Cotton-Poly / Memory Foam
Model Number SM-6072
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

Customer Reviews

5 Stars
4 Stars
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1 Stars
  • InnerSpace 4.5 inch Memory Foam Sofa Mattress

    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

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  • This mattress is just what I hoped for.

    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.

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  • Super confortable for guests.

    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!

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  • Positive Review: Quite comfortable

    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.

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  • As described

    good product as a replacement for aging sofa..........................................

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  • Mattress fits perfectly

    love Overstock . . . passing on good review to friends!

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  • Inner Space 4.5 memory foam sleeper mattress

    The mattress fit perfectly in the frame and I can now feel confident that the person sleeping on it will be comfortable and I can close the sofa with ease.

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Questions & Answers

Get your product questions answered right here.
  • I measured the existing sofa mattress and it is 63" wide.Will your 60" wide mattress be an good replacement?

    • 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.

  • I'm 6'3 would I fit on this..

    • 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 Guides

Shipping & Returns

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.