California King Size Mattresses

No other mattress features the Purple GelFlex™ Grid, a layer of flexible gel that’s firm enough to support your frame, but soft enough to reduce tension and pressure. It’s comfort that’s great for your whole body.

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Each Mattress Purchase Includes

Flexible Financing Options
As low as 0% APR.
10-Year Warranty
If there's something wrong with your mattress, we'll replace it for up to 10 years, starting from the date of original purchase.  
100 Night Trial
Your 100-night trial begins the day your mattress is delivered to your doorstep. If you decide it isn't a perfect fit for you within the first 100 nights, we'll have it picked up and issue a full refund. (Awesome, right?)
Free Shipping
Get your mattress shipped straight to you at no extra cost – with complimentary white-glove delivery available for select mattresses.

Original California King Size Collection

Our Original mattresses have the GelFlex Grid on top and a comfort foam base to deliver comfort and instantly adaptive support.

4.4
(31340)

Cal King Purple Mattress

Medium-firm, very stable feel and instantly adaptive support.

The Purple Mattress® is the one that started it all, balancing comfort and support, for a medium-firm mattress that delivers amazing sleep.

Support

Cushioning

Air Circulation

Pressure Relief

Grid Height

2 Inches

Feel

Medium-Firm
Cal Kings starting at or as low as
UP TO $500 off + 20% OFF PILLOWS, SHEETS + BEDDING
4.4
(31340)

Cal King Purple Plus™ Mattress

Medium, stable feel and instantly adaptive support.

The ‘plus’ in our Purple Plus Mattress is an extra layer of comfort foam, which gives it a medium feel compared to the standard Purple mattress.

Support

Cushioning

Air Circulation

Pressure Relief

Grid Height

2 Inches

Feel

Medium
Cal Kings starting at or as low as
$400 OFF + 20% OFF PILLOWS, SHEETS + BEDDING

Hybrid California King Size Collection

Our Hybrid mattresses pair the comfort and instantly adaptive support of the GelFlex Grid on top with the buoyancy and air flow of individually wrapped coils.

4.4
(5771)

Cal King Purple Hybrid Mattress

Firm, responsive feel and instantly adaptive support.

The firmest mattress in our Hybrid Collection, the Purple Hybrid® Mattress combines the pressure-relieving benefits of the GelFlex Grid with the buoyancy of individually wrapped coils.

Support

Cushioning

Air Circulation

Pressure Relief

Grid Height

2 Inches

Feel

Firmest
Cal Kings starting at or as low as
20% OFF PILLOWS, SHEETS + BEDDING
Best Seller
  • Hybrid Premier 3 Mattress
  • Hybrid Premier 3 Hover Image - exposed grid
4.4
(5969)

Cal King Purple Hybrid Premier 3 Mattress

Medium-soft, very responsive feel and more instantly adaptive support.

The medium-soft mattress in our Hybrid Collection, the Purple Hybrid Premier® 3 Mattress combines the pressure-relieving benefits of 3 inches of the GelFlex Grid with the buoyancy of individually wrapped coils.

Support

Cushioning

Air Circulation

Pressure Relief

Grid Height

3 Inches

Feel

Medium-Soft
Cal Kings starting at or as low as
20% OFF PILLOWS, SHEETS + BEDDING
4.4
(1920)

Cal King Purple Hybrid Premier 4 Mattress

Soft, most responsive feel and the most instantly adaptive support.

The softest mattress in our Hybrid Collection, the Purple Hybrid Premier® 4 Mattress combines the pressure-relieving benefits of 4 inches of the GelFlex Grid with the buoyancy of individually wrapped coils.

Support

Cushioning

Air Circulation

Pressure Relief

Grid Height

4 Inches

Feel

Softest
Cal Kings starting at or as low as
20% OFF PILLOWS, SHEETS + BEDDING

Benefits of The Purple GelFlex™ Grid

Cushions and supports

Cushions + Supports

The Grid’s columns give way under focused pressure from hips and shoulders to gently cradle your body, while offering support to broad, evenly distributed weight (lookin’ at you, legs and back).

Dissipates Body Heat

Dissipates Body Heat 

The Grid features 1,400+ ventilation chambers for better airflow. Plus, when it comes to temperature, our GelFlex material is like Switzerland – totally neutral – so you won’t sleep too hot or too cold.

Adapts as you move

Adapts as You Move

The GelFlex Grid instantly shifts as you change your sleeping position. When you move, it moves, so you feel every inch of comfortable support and your sleep remains blissfully uninterrupted. 

Let our sleep experts help you discover better sleep.

Is a California King Size Right For Me?

  • The Cal King mattress is 4 inches longer vs the standard king and 4 inches narrower.
  • The Cal King size mattress is an ideal option for tall sleepers wanting an extra 4 inches of length.
  • Ideal for couples with different sleep preferences, in addition, it helps isolate motion transfer.

Mattress Size Guide

Crib: 28" x 52"   Toddler: 28" x 52"    

Twin: 38" x 75"  Twin XL: 38" X 80"   

Full/Double: 54" x 75"  Queen: 60" x 80"  

King: 76" x 80"  California King: 72" x 84"

Mattress Size Guide
mattress size guide

Frequently Asked Questions

You can buy a California king size mattress securely and conveniently right here at Purple. There’s no better way to buy a California king size bed. In just a few clicks, you can choose your Purple Mattress and have it shipped right to your door. All Purple mattresses include free shipping and returns, a 100-night zero-risk sleep trial, and a 10-year warranty. Plus, when you buy a California king size mattress from Purple, you get loads of freebies and discounts on mattress accessories. You can get a California king size mattress set with bedding, pillows, and more for at an unbeatable price.

If you’re in the mood to go shopping in person, you can also test-drive a Purple Mattress at your local mattress retailer. Purple partners with top mattress stores across the United States. Just use our store locator to find a Purple mattress near you.

The California king size mattress and standard king size mattress have different dimensions. It’s important to know the differences between King and California King, especially when shopping for bedding or a bed frame.  Let’s take a look at the difference between king size and California king size mattress dimensions:

King size mattress: 76 X 80 inches

California king size mattress: 72 X 84 inches

The California king size mattress size is 4 inches longer than the king size. This makes it ideal for taller sleepers. It’s also 4 inches narrower than the king size. If you don’t need the extra length, then you may want to opt for a king mattress and enjoy the extra width.

The Purple Complete Comfort sheets come in a King and a Cal King size for a perfect fit. If you choose the Purple SoftStretch Sheets, you can use the same set for a king bed or a California king bed.

Purple sheets are engineered specifically to unleash the comfort of a Purple mattress. The extra stretchy fabric and the Purple Grid™ are a match made in mattress heaven. Our sheets allow you to sink into the mattress with zero resistance so you experience the full body-cradling comfort of the Purple Grid. Purple sheets are light, airy, and silky smooth, which enhances Purple’s signature zero-gravity feel. 

We can’t say the same about other sheets. Stiff king size sheets with no stretch won’t be as versatile and may not be compatible with a California king size mattress, especially if it’s a fitted sheet. To get the most out of your mattress and ensure a good night’s sleep, it’s always best to choose stretchy sheets

Yes, you can use the same pillows for a king bed and California king bed. When you get a new mattress, pillow size is not nearly as important as the size of your bedding or bed frame. The best pillows are the ones you find most comfortable, which often depends on your sleep style. For example, a side sleeper would probably prefer a higher pillow, because their head needs to remain elevated to stay aligned with the neck and spine. A stomach sleeper or back sleeper may want a low-profile pillow to help keep their neck straight.

In terms of comfort and support, you can’t beat Purple Pillows. The original Purple Pillow is made with a Purple Grid™ core, so your head and neck get the same cool, plush, cradling support as your body does on a Purple Mattress. It’s a low-profile pillow perfect for everyone. Optional risers are available to make the pillow taller, which works great for side sleepers. 

The Purple Harmony pillow is the luxurious pillow featuring the new Purple Grid Hex combined with a Talalay latex interior. It has a plush, hypoallergenic core that won’t collapse or bunch. The Harmony pillow is available in two different heights: The standard size is 6.5” thick, while the tall size measures 7.5” thick.

California king beds are recommended for people who are quite tall. This makes sense because the Cal king is the longest mattress you can buy. King and queen beds are 80 inches long, which is typically long enough for most people. The California king is 84 inches long, providing extra leg room for those who are 6’ 6” tall or more.

There are other reasons for choosing a California king bed size over a king size bed. Some average-sized sleepers may choose a California king because it better suits the shape of their bedroom. If your master bedroom is long and narrow, a king mattress may not leave enough room on either side of the bed. A California king may fit better, allowing you to enjoy a large bed without downsizing to a queen mattress.

If you have pets that sleep at the end of your bed, you might benefit from the extra length a California king size mattress provides. Though, we can’t promise it will stop your cat from attacking your toes at 3 am.

No, you don’t need a box spring to support your California king mattress. In fact, we advise against it, especially if you have a Purple Mattress. Box springs lack durability and can be popular homes for mold, bacteria, and dust mites. The squeaky springs will also prevent you from enjoying the full benefits of the Purple Grid.

A California king size mattress gets the best support from a Purple bed frame. Not only do Purple bed frames look great, but they are designed to enhance the luxurious comfort and support of your Purple Mattress.

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