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The Casper Foundation - 2 of 4The Casper Foundation - 3 of 4The Casper Foundation - 4 of 4
The Casper Foundation - 1 of 4

The Casper Foundation - King: Casper Sleep Mattress Base, 7.5" MDF Frame, Multicolor, Spot Clean, Adult Assembly Required

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Out of Stock

Eligible for registries and wish lists

About this item

Highlights

  • Easy to assemble without tools
  • Slats are positioned a perfect four inches apart for optimal support
  • Can be quickly disassembled if you are moving or need to maneuver around tight corners
  • Designed in the USA, Assembled in China
  • 120-night risk-free trial

Description

The foundation provides excellent support under any mattress (especially a Casper!) and can be assembled in minutes.

ABOUT CASPER
Casper was created to re-imagine sleep from the ground up, beginning with its obsessively engineered, outrageously comfortable mattress. All of Casper's sleep products are developed in-house by the company's award-winning R&D team.

Casper was recently named one of Fast Company's Most Innovative Companies in the World and its eponymous mattress was crowned one of TIME Magazine's Best Inventions.

FAQs
What is the 120-Night Trial?
We believe you should actually sleep on a product to decide if you like it. So we give you 120 nights to test out all Casper products in your own home. If you don't love it, we'll give you a full refund.

Why does the Casper need a foundation?
The foundation helps support the Casper while optimizing air flow to ensure a restful night's sleep.

Can I put the foundation on the floor?
We do not recommend putting the foundation directly on the floor as doing so can cause wear to the chambray cover.
Dimensions (Overall): 7.5 Inches (H) x 75.5 Inches (W) x 79 Inches (D)
Weight: 81 Pounds
Material: MDF Composite (Medium-Density Fiberboard) (Frame)
Textile Material: 90% Polyester, 10% Polypropylene
Assembly Details: Adult Assembly Required, No Tools Needed
Industry or Government Certifications: Not Listed or Certified
Battery: No Battery Used
Care & Cleaning: Spot or Wipe Clean
Warranty: 2 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
Street Date: June 18, 2017
TCIN: 52375324
UPC: 192472004805
Item Number (DPCI): 010-02-0028
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.

all-mattress

mattress
Mattress Size Average Mattress Dimensions
Twin 39" x 75"
Twin XL 39" x 80"
Full 54" x 75"
Queen 60" x 80"
King 76" x 80"
California King 72" x 84"

All Sizes in Inches Unless Otherwise Stated

Shipping details

Estimated ship dimensions: 76.65 inches length x 17 inches width x 10 inches height
Estimated ship weight: 81 pounds
We regret that this item cannot be shipped to PO Boxes.
This item cannot be shipped to the following locations: American Samoa (see also separate entry under AS), Guam (see also separate entry under GU), Northern Mariana Islands, Puerto Rico (see also separate entry under PR), United States Minor Outlying Islands, Virgin Islands, U.S., APO/FPO, Alaska, Hawaii
This item ships in its manufacturer’s packaging, revealing what’s inside. ·

Return details

This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Guests who order a new mattress, mattress set, futon or futon mattress for delivery to an address in California may be eligible to schedule pickup of a used mattress, mattress set or futon mattress. Please refer to California Used Mattress Recovery Act for more information.See more details.
See all questions (16)

Additional product information and recommendations

Guests also viewed

Guests are saying

This foundation is praised for its easy assembly and compatibility with various bed frames, making it a convenient choice for guests. Many appreciate its sturdy construction and the support it provides for mattresses, enhancing sleep quality. While some guests noted issues with slats moving and firmness levels, the overall feedback highlights its modern design and practicality, making it a solid investment for a restful night's sleep.
    Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
    4.7 out of 5 stars with 607 reviews
    100% would recommend
    16 recommendations
    5 out of 5 stars
    20 January, 2026
    originally posted on casper.com
    Image

    It is so easy to

    It is so easy to put together. I had all the tools I thought I’d need and never touched them. Great design.
    Matt S.
    Did you find this review helpful?
    5 out of 5 stars
    20 January, 2026
    originally posted on casper.com
    Image

    great

    great
    Nancy R.
    Did you find this review helpful?
    5 out of 5 stars
    18 January, 2026
    originally posted on casper.com
    Image

    Love, love, love my Casper

    Love, love, love my Casper Mattresses and Foundations! Casper’s Dream Team, Ashton in Sales and Miguel in Support, added to the Dream Experience! In fact, Ashton, call me…I’m ready for my 4th Dream set (with hopefully a nice discount)! Thank you!
    Judith J.
    Did you find this review helpful?
    5 out of 5 stars
    14 January, 2026
    originally posted on casper.com
    Image

    Easy to install and comfortable

    Easy to install and comfortable
    Wayne K.
    Did you find this review helpful?
    5 out of 5 stars
    7 January, 2026
    originally posted on casper.com
    Image

    Strong, sturdy and pretty

    Strong, sturdy and pretty
    Joann C.
    Did you find this review helpful?
    1 out of 5 stars
    5 January, 2026
    originally posted on casper.com
    Image

    Too low to floor

    Too low to floor
    Christina S.
    Did you find this review helpful?
    1 out of 5 stars
    5 January, 2026
    originally posted on casper.com
    Image

    Can I return my mattress

    Can I return my mattress I don’t like it.
    Mohammad C.
    Did you find this review helpful?
    4 out of 5 stars
    4 January, 2026
    originally posted on casper.com
    Image

    Simple to assemble after trying

    Simple to assemble after trying a couple of times as there wasn’t instructions in the box. The mattress support boards did not lie flat since the middle support beam sat a fraction higher than the edges. I actually need one that is half that height as my bed frame sits fairly high, so I need to hop up to get on.
    Joan L.
    Did you find this review helpful?
    5 out of 5 stars
    4 January, 2026
    originally posted on casper.com
    Image

    Incredible addition to the mattress.

    Incredible addition to the mattress. Should have bought sooner!!
    francisco b.
    Did you find this review helpful?
    5 out of 5 stars
    4 January, 2026
    originally posted on casper.com
    Image

    Good

    Good
    Michael H.
    Did you find this review helpful?
    5 out of 5 stars
    4 January, 2026
    originally posted on casper.com
    Image

    Mattress is amazing. Exactly what

    Mattress is amazing. Exactly what we were hoping for.
    JEFFREY M.
    Did you find this review helpful?
    5 out of 5 stars
    2 January, 2026
    originally posted on casper.com
    Image

    It’s great! I love my

    It’s great! I love my Casper bed. It’s so comfy! I don’t want to get out of bed!
    Shari E.
    Did you find this review helpful?
    5 out of 5 stars
    1 January, 2026
    originally posted on casper.com
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    This foundation exceeded my expectations.

    This foundation exceeded my expectations. I used the white glove service and noted that it went together fairly easily and the best part was it appears to be breathable.
    Margaret H.
    Did you find this review helpful?
    5 out of 5 stars
    31 December, 2025
    originally posted on casper.com
    Image

    Nice

    Nice
    Debra B.
    Did you find this review helpful?
    5 out of 5 stars
    30 December, 2025
    originally posted on casper.com
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    I love everything about this

    I love everything about this mattress and foundation. It is affordable, easy to manage and set up and very comfortable.
    Sarah D.
    Did you find this review helpful?
    5 out of 5 stars
    28 December, 2025
    originally posted on casper.com
    Image

    Easy to assemble!

    Easy to assemble!
    Hillevi P.
    Did you find this review helpful?
    3 out of 5 stars
    26 December, 2025
    originally posted on casper.com
    Image

    Too soft. Mattress lacks firmness.

    Too soft. Mattress lacks firmness.
    Rick E.
    Did you find this review helpful?
    5 out of 5 stars
    25 December, 2025
    originally posted on casper.com
    Image

    Looks nice and easy to

    Looks nice and easy to assemble
    Elizabeth J.
    Did you find this review helpful?
    5 out of 5 stars
    25 December, 2025
    originally posted on casper.com
    Image

    I felt grateful with my

    I felt grateful with my purchase
    Carlota M.
    Did you find this review helpful?
    5 out of 5 stars
    25 December, 2025
    originally posted on casper.com
    Image

    Like everything you assemble on

    Like everything you assemble on arrival, the instructions were written for another model. So a little common sense and more time than I expected was needed. But it is assembled now and just fine. In my next life, I plan to become an instruction writer.
    Joseph C.
    Did you find this review helpful?

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