InnerSpace 6-inch Sleep Luxury King/ California King-size Mattress

by Innerspace
Out of Stock
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ITEM# 14161823
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ITEM#: 14161823

This comfortable Poly Foam mattress offers needed support and comfort, dispersing weight evenly and eliminating uncomfortable pressure points. The mattress also eliminates motion transfer and never needs flipping.

  • Mattress measures 6 inches thick
  • Materials: Polyurethane foam
  • Cover is quilted cotton stretch knit
  • Mattress dimensions: 6 inches high x 76 inches wide x 80 inches long
  • Designed to fit all standard size beds with or without a box spring
  • Open cellular structure channels heat away from your body to keep you cool and comfortable
  • Improves circulation while reducing pressure points that can disrupt sleep
  • Mattress eliminates motion transfer and uncomfortable pressure points
  • Never needs turning or flipping
  • Disperses weight evenly
  • Mattress can be used with an existing frame
  • Meets all flammability standards
  • Spot clean as needed

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 Foam
Thickness 6 Inch
Memory Foam Type Foam
Support Medium
Mattress Top Quilted
Product Features Bed in a Box, Hypoallergenic
Recommended Foundation Type Adjustable, Bed Slats, Box Spring, Platform
Size California King, King
Dimensions See Details
Model Number OSK-SL-K/CK
Country of Origin United States

Quality Rating

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Features for Rugs

See All Features

Product Reviews

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

  • Firm, but I like it
    Verified Purchase

    It is firm,but just like what I want. Very comfortable.

    Read More
    Shan Z. Dec 31, 2016
  • didn't order this item
    Verified Purchase

    no mattress will get a good review after the queen set i bought here

    Read More
    william c. Aug 16, 2016
  • great comfort for your price
    Verified Purchase

    have this in a spare guest room, everyone who has stayed says they sleep great on this mattress!!!

    Read More
    Dennis O. Jan 17, 2016
  • Verified Purchase

    Read More
    susan m. Aug 7, 2017

Questions & Answers

  • Q:

    "Is this firm, medium or soft."

    • A:

      Hello neenee002, this is medium. Have a great day!

  • Q:

    "Is this an actual mattress or is it a mattress topper?"

    • A:

      Hello erod0210, Thank you for inquiring about the InnerSpace 6-inch Foam King/ Cal King-size Mattress. This is a mattress. Thank you for shopping with us.

  • Q:

    "It say King or Cal king but only shows dimensions for king. i would like a Cal king in this Mattress!"

    • A:

      I apologize for the confusion, The dimensions for a Cal-king mattress are 72 inches wide x 84 inches long and we do have the Cal-king available. Thank you.

  • Q:

    "How do I order this entire bed set ( including headboard/footboard and frame) ?"

    • A:

      Thank you for contacting us, unfortunately this bedroom set is not available. I attached the link below to some others that you might like. Please let me know if you have any further question.

  • Q:

    "How many pounds of foam"

    • A:

      Thank you for your question. This has 1.5 lbs and ILD is 34. Have a great day!

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.