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InnerSpace 4.5-inch Queen-size Foam Sofa Sleeper Mattress

Today: $251.99
MSRP: $539.00 $287.01 (53%) off
Out of stock
ITEM# 14351299

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Made in USA


ITEM#: 14351299

This Foam mattress distributes body weight and eliminates uncomfortable pressure points. This piece includes a quilted cotton stretch knit cover with zipper.

  • Mattress measures 4.5 inches thick
  • Materials: High-Density Poly Foam
  • Cover is Quilted Cotton Stretch Knit with zipper
  • 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: 60 inches wide x 72 inches long x 4.5 inches thick or 58 inches wide x 72 inches long x 4.5 inches thick

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.

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


Mattress Type Foam Folding Sofa Beds
Thickness 4.5 Inch
Memory Foam Type Foam
Density 1.5 Pound
Support Medium
Mattress Core Construction Foam
Mattress Top Tight Top
Product Features Hypoallergenic Made in USA
Recommended Foundation Type Adjustable
Dimensions See description
Warranty 5 year Manufacturer
Model Number OSK-SP6072-ECO

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Wife

    This is a very comfortable and sturdy bed. I couldn't get the cover back on it but I would still recommend it for it's size and comfort.

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  • There are better choices

    I had this product for a little over a year and I do use it regularly (as it is easier to sleep on sofa bed if I have to get up earlier or later than wife). My biggest issue is that after a year the mattress has no support what so ever. It's like sleeping on the bottom part of the sleeper system and believe the mattress density is too light for someone like me 5'11 200 lbs. I had another brand from overstock that lasted at least 3 years and was always firmer. I would say great cover, good for occasional use, but not for regular use or for heavier individuals. Just not enough foam density.

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  • Very comfy mattress.

    I was very pleased on how comfortable the mattress is. A good economy choice.

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  • Good Sofa Bed

    Its perfect for my sofa bed. Right size for myine, measure your sofa bed before ordering. Did not have an odor like others said. Very comfortable.

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  • Queen size sleeper mattress

    Needed a replacement mattress for a sofa sleeper and had the hardest time finding one at a reasonable price (google 'sofa sleeper mattress' and you'll find that most are outrageously priced - add a couple of hundred dollars and you can instead by a new sofa!). This mattress definitely fit the bill (and the sofa :). Great quality, price, fit, and it was delivered in a very timely manner. Highly recommend.

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  • sofa bed mattress

    The dimensions are Way off, not just a little off. The Queen size for example gives you a choice of two sizes for a sofa couch. I chose the largest and when it came, it was 2 inches shorter in width, which is a variable not too extreme, but does make a difference if you are fitting it to a sofa couch frame, BUT the serious issues, is the lengh which was 4 " short. I don't know if Overstock accidentally sent the wrong size out, and it was actually a Full and not a Queen as ordered, or if it's just a defective item and not sized properly, not sized as advertised. Problem you will have if you do get one that's defective or the wrong size, is that it's shipped with the air all sucked out with shrink wrap in a small box...once it's out and expands, you will NEVER get it back rolled up to return if Overstock allows you to do so. I'm waiting now to see what they can do about this. They are normally excellent with their customer service on issues like this, that are not the Customer's fault.

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Questions & Answers

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

    • I had to replace my mattress in my new couch. And a friend had told me about you.she had ordered some stuff from I thought I would try it.

  • Do you have the ILD score to gauge firmness?

    • Thank you for contacting us katie51. The ILD is 34 and the density rating is 1.5 lbs. It would be a medium firm to firm mattress. If you need anything else, please let me know. Have a great day!

  • Does this price include the couch or is it the mattress only? It is not clear from the description.

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

    • You can choose your dimensions on the options button prior placing the order.

Shopping Tips & Inspiration

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.

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