California King Mattresses
What's the difference between a California King and a King?
While their total surface areas are about the same, your average King-size mattress is 80" long, while a California King-size mattress is 84" long. When it comes to width, a Cal King bed is 72" wide and a King bed is 76" wide. So, a California King mattress is best for tall people looking for a more extended sleep surface, narrow bedrooms, people that sleep with pets, and couples. Whether hybrid, memory foam, or gel memory foam, we have an extensive line-up online of comfortable and supportive Cal King mattresses.
We do not have an expedited delivery option at this time. Our site will provide the best delivery estimate at checkout.
Directly on our website, we only ship within the United States, to the lower 48 states. At this time we do not offer shipping to Alaska or Hawaii.
Financing is available directly through our website. We have partnered with Affirm to offer financing or pay-over-time options for our customers. At checkout, you will be given the option to pay through Affirm. If approved, you will be given loan options for 3, 6, or 12 months. All interest is provided up front, there are no hidden fees, and only a soft credit check is done through Affirm's system for approval. After you've confirmed your choice, you will be redirected back to our website to complete checkout.
Affirm only requests a soft credit check for approval, so the credit inquiry won’t affect your credit score. Once you've selected your financing term, you will be redirected back to the website to complete your purchase.
For returns and cancellations, refunds will be processed through Affirm and posted to your Affirm account. Refunds will be processed within 3-10 business days. Keep in mind the interest charge will not be refunded.
Please note that financing through Affirm is not available in West Virginia and Iowa.
When you place an order through Serta.com, you are backed by the 120-Day In-Home Trial that may not apply at all places Serta products are sold. We know ordering a mattress online can be intimidating, so we want to take the risk out of it for you with the in-home trial that allows the perfect amount of time to test the mattress and accessories in your home and make sure it's right for you. If you decide it is not the right fit, we make returns easy and—more importantly—free.
We are unable to provide custom sizes at this time. For now, we carry industry standard sizes of twin, twin XL, full, queen, king, and California king.
Why buy Serta online?
120-Day In-Home Trial
Experience the mattress in your home for up to 120 days. If you’re not completely satisfied, you can exchange or return it for a refund.Read more
10-YEAR LIMITED WARRANTY
You should be able to rely on the quality of your rest night after night. That’s why every Serta® mattress is backed by Serta’s 10-year limited warranty.Read more
Free Shipping & Returns
All mattresses and foundations ship free and feature free returns when you order directly from Serta.com.Read more
DESIGNED & BUILT IN THE USA
All Serta mattresses are designed and assembled in the USA, leveraging our 85 years of manufacturing expertise.Read more
est easy knowing Serta uses only CertiPUR-US® Certified Polyurethane Foam.Read more
Try in stores
Want to test our products before you buy? Our Sleep Ambassadors will offer you a personalized, no-pressure in-store experience. Don't live near a Serta shop? Learn where else you can find us!