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Foundation

Foundation

4.5· 839 ratings

Last price we saw

$8.00at Amazon, last seen Nov 2

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Our take on the Foundation

The Casper Foundation is a box-spring alternative: a 7.5-inch-tall wood platform with slats spaced four inches apart, built to support any Casper mattress. It assembles and disassembles in minutes with no tools. It is a best seller on Casper's own site, rated 4.5 out of 5 from 839 ratings. No current price was provided, so compare store prices before buying.

Best forCasper mattress owners replacing a box springShoppers who want tool-free assemblyLow-profile bed setups
Renters who need to move a bed base
Pros
  • Solid wood frame tested for durability
  • No-tool assembly and disassembly in minutes
  • Four-inch slat spacing supports the mattress and resists sagging
  • 7.5-inch height fits most beds
  • Light enough for one person to handle
Cons
  • Bulky to move and store
  • Some buyers report delivery delays or missing parts
  • Some report a strong chemical smell at first
  • No adjustable height or size options beyond standard

Foundation prices at every store

  • AmazonCheck price at Amazon
  • Casper SleepCheck price at Casper Sleep

Foundation price history

Lowest price we've seen: $8.00 on Nov 2 at Amazon. Tracked across 1 store since Nov 2.

What reviewers say

Buyers rate the Casper Foundation highly for sturdiness, easy tool-free assembly and solid mattress support. Complaints center on delivery problems and an initial chemical smell.

Pros
  • Sturdy and stable frame
  • Quick assembly without tools
  • Prevents mattress sagging
  • Clean, stylish look
Cons
  • Delivery delays and missing items
  • Strong smell that needs time to vent
  • Long waits for orders

From Casper Sleep

  • Box spring alternative that provides excellent support under any Casper mattress
  • Engineered with solid wood and rigorously tested for durability
  • Assembles and disassembles in minutes with no tools needed
  • Slats spaced four inches apart for optimal support
  • 7.5" high, compatible with most beds
  • BEST SELLER
Sizes
Twin, Twin XL, Full, Queen, King, California King
Materials
Solid and/or engineered wood frame and slats; woven exterior upholstery; non-woven interior and slat upholstery
Sizing
Measures 7.5" high, making it compatible with most beds; ideal foundation height is between six and twelve inches
Guarantee
2-Year Limited Furniture Warranty
Returns
30-night trial, extended to 100 nights if purchased alongside a matching mattress
Shipping
Free shipping via UPS; additional shipping fees apply to Alaska and Hawaii; in-stock, ships in 1-2 business days
In the box
Foundation
Size chart
SizeDimensions
Twin74" x 37.5" x 7.5"
Twin XL79" x 37.5" x 7.5"
Full74" x 52.5" x 7.5"
Queen79" x 59.5" x 7.5"
King79" x 75.5" x 7.5"
California King71.5" x 83" x 7.5"

About the Foundation

We reinvented the box spring. Our bed foundation provides excellent support under any Casper mattress and can be assembled in minutes.

Need replacement Casper Foundation pins? Shop Foundation Pin

What buyers say

Buyers like
  • Sturdy and stable bed frame
  • Easy, tool-free assembly
  • Provides great mattress support and prevents sagging
  • Stylish appearance
  • Solid base for a good night's sleep
  • Light enough to handle despite being bulky
Buyers complain about
  • Delivery delays or missing items
  • Strong chemical smell venting from the mattress
  • Had to wait a long time

Questions and answers

Is the Casper Foundation worth it over a box spring?
It gives firmer, more even support than a traditional box spring and assembles without tools. If you already own a Casper mattress, it is the matching base.
Does it work with non-Casper mattresses?
Casper says it supports any Casper mattress. The four-inch slat spacing and solid wood frame should suit most foam and hybrid mattresses, but check your mattress maker's base requirements.
How tall is it, and will it fit my bed frame?
It is 7.5 inches high, which Casper says is compatible with most beds. Measure your frame's rail height before ordering.
What is in the box?
The box contains the Foundation only. Replacement corner pins are sold separately.
Do I need tools to put it together?
No. Casper says it assembles and disassembles in minutes with no tools.
When is it cheapest?
Casper discounts foundations during major sales, often bundled with a mattress. Compare prices across stores before buying.
What do buyers say about the Foundation?
Rated 4.5 out of 5 from 839 ratings. Buyers like: Sturdy and stable bed frame; Easy, tool-free assembly; Provides great mattress support and prevents sagging. Common complaints: Delivery delays or missing items; Strong chemical smell venting from the mattress.
Where can I buy the Foundation?
2 stores we checked sell it, including Amazon, Casper Sleep.

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