The Foundation
Strong and sturdy
Engineered with solid wood, the foundation has been rigorously tested for durability and proven to stand up to years of sleep.
Perfectly spaced slats
Older box springs’ slats tend to be too far apart, leaving room for a mattress to sag. Our foundation’s slats are positioned a perfect four inches apart for optimal support.
Effortless assembly
It can be easily assembled and disassembled in a matter of minutes — and you don’t need to use any tools.
Strong and sturdy
Engineered with solid wood, the foundation has been rigorously tested for durability and proven to stand up to years of sleep.
Perfectly spaced slats
Older box springs’ slats tend to be too far apart, leaving room for a mattress to sag. Our foundation’s slats are positioned a perfect four inches apart for optimal support.
Effortless assembly
It can be easily assembled and disassembled in a matter of minutes — and you don’t need to use any tools.
Strong and sturdy
Engineered with solid wood, the foundation has been rigorously tested for durability and proven to stand up to years of sleep.
Perfectly spaced slats
Older box springs’ slats tend to be too far apart, leaving room for a mattress to sag. Our foundation’s slats are positioned a perfect four inches apart for optimal support.
Effortless assembly
It can be easily assembled and disassembled in a matter of minutes — and you don’t need to use any tools.
No-tool easy assembly
Product specs
(W x L x D)
- TwinFoundation: 37.5" x 74" x 7.5"Metal Bed Frame: 38.0" x 72.4" x 7.3"
- Twin XLFoundation: 37.5" x 79" x 7.5"Metal Bed Frame: 38.0" x 72.4" x 7.3"
- FullFoundation: 52.5" x 74" x 7.5"Metal Bed Frame: 53.1" x 72.4" x 7.3"
- QueenFoundation: 59.5" x 79" x 7.5"Metal Bed Frame: 60.2" x 76.7" x 7.3"
- KingFoundation: 75.5" x 79" x 7.5"Metal Bed Frame: 76.2" x 76.7" x 7.3"
- Cal KingFoundation: 71.5" x 83" x 7.5"Metal Bed Frame: 72.2" x 76.7" x 7.3"
Solid and/or Engineered Wood Frame and Slats
Woven Exterior Upholstery
Non-Woven Interior and Slat Upholstery
Works with any mattress. Requires a simple metal bed frame, slatted bed frame, or a platform (if you want extra height). The foundation should not be put directly on the floor.
Free shipping and free returns in the US and Canada.
Select products ineligible for free shipping where indicated. Free shipping excludes Alaska, Hawaii, Yukon Territory, Northwest Territory and Nunavut.
In the US and Canada, we ship via UPS.
Subject to 2 Year Limited Furniture Warranty. Read more.
30-night, risk-free trial*
We give you 30 nights to try it on us, and 100 nights if you also buy a mattress. Don’t love it? We’ll take it back and give you a full refund.
Free shipping and returns*
Free shipping and returns are included with every order. Non-mattress items purchased from 11/6 through 12/6 can be returned up until January 6, 2021.
Holiday Return Policy
Exceptional customer service
Snooze specialists are available seven days a week to answer any question under the moon.
30-night, risk-free trial*
We give you 30 nights to try it on us, and 100 nights if you also buy a mattress. Don’t love it? We’ll take it back and give you a full refund.
Free shipping and returns*
Free shipping and returns are included with every order. Non-mattress items purchased from 11/6 through 12/6 can be returned up until January 6, 2021.
Holiday Return Policy
Exceptional customer service
Snooze specialists are available seven days a week to answer any question under the moon.
30-night, risk-free trial*
We give you 30 nights to try it on us, and 100 nights if you also buy a mattress. Don’t love it? We’ll take it back and give you a full refund.
Free shipping and returns*
Free shipping and returns are included with every order. Non-mattress items purchased from 11/6 through 12/6 can be returned up until January 6, 2021.
Holiday Return Policy
Exceptional customer service
Snooze specialists are available seven days a week to answer any question under the moon.
Frequently Asked
Questions
We don’t recommend putting the Casper foundation directly on the floor. The chambray upholstering that covers the foundation’s sides is not designed for it. Doing so can cause unsightly wear and we want your Casper bed set to stay in perfect condition — and be eligible for warranty.
Much like the foundation of your home, a mattress foundation provides critical support for the entire bed. To keep sagging at bay, you need a strong and leveled base for your mattress. At Casper, our foundations are designed to protect all mattresses from degradation, no matter the bed frame or material. For sleepers with no bed base or just an old box spring, it’s time for an upgrade.
Unlike old box springs and sagging foundations, a quality mattress base provides a solid surface that ensures lasting support. Your mattress will remain in peak condition for years to come, alongside many sleep-supporting benefits:
Alongside Casper mattresses, our foundations are designed for long-lasting support. With our compact slat design, you won’t be bothered by gaps or sharp pressure points.
In short, one that protects your mattress and improves your sleep. Mattress bases range from metal slats to solid platforms. At Casper, we prefer our wooden slat model for a mattress base. The closely-spaced beams evenly level your mattress, providing structure without sacrificing comfort. This bed base is great for all types of mattresses and provides greater support compared to a traditional box spring or foundation.
Not quite. Both foundations and box springs provide a base support layer for any mattress type. However, box springs add a little extra give and increase breathability, while foundations are for overall support.
A box spring is any wood or metal bed frame containing coiled springs covered by cloth. This once-popular design is now mostly found on older beds.
A foundation is any non-spring bed base, from metal or wooden slats to solid platforms. Slat models provide more air circulation and flexibility, while solid bases give the firmest support.
Both slats and solid foundations are an ideal box spring alternative for better mattress protection.
Learn more in our guide on Platform Bed vs. Box Spring.
The ideal height for a foundation is between six and twelve inches. Shorter mattresses might benefit from a taller foundation and taller mattresses from a shorter base. When it’s all evened out with a bed frame and mattress, most beds are about two feet tall, though it’s really a matter of personal preference. Our mattress base measures 7.5” high, making it compatible with most beds.
