The 5 Best California King Mattresses of 2026  

1. Best California King Mattress

   

   

   

   

   
   Helix Midnight Luxe 2025 0 
   
   Side Sleeping

   8.2

   Back Sleeping

   7.4

   Stomach Sleeping

   7.2

   Longevity

   6.8

   Cooling

   8.2

   Motion Dissipation

   8.2

   Firmness Level: 

   Medium (44 Pa/mm)

   Bed-In-A-Box: 

   Yes

   Edge Support: 

   See all our test results 

   The Helix Midnight Luxe 2025 is the best California King mattress we've tested. This Medium hybrid's strong edge support, great cooling, and impressive motion dissipation make it a great option for people looking for a California King-size bed. Its soft quilted and memory foam layers create an enveloping, contouring feel, relieving pressure on your arm and shoulder. A pocket coil layer provides at least decent support regardless of your weight, so your hips don't sink in overly far and your spine stays aligned.

   Pick if: You want an enveloping mattress, or edge support is a priority.
   Skip if: You're a hot sleeper and often can't fall asleep because you feel overheated.

   The mattress edges are reinforced with tightly wound pocket coils and compress evenly, so you can sleep near the edge comfortably, which makes the California King-size sleeping surface feel a little wider. It also offers impressive motion dissipation, although bigger movement can make the mattress wobble for a moment, which might bother very light sleepers. It's impressively cooling, as well, so it won't make most people feel overheated. However, hot sleepers who want a mattress that feels cool when they first get into bed may need a mattress with slightly better cooling. It's not the most durable mattress, but we found a few layers of good-quality foam, which will help it resist forming permanent indentations for longer than mattresses that only include low-quality materials.

   See our review 

2. Best Mid-Range California King Mattress

   

   

   

   

   
   Tuft and Needle Mint 6 
   
   Side Sleeping

   7.9

   Back Sleeping

   7.7

   Stomach Sleeping

   7.6

   Longevity

   6.3

   Cooling

   8.4

   Motion Dissipation

   9.0

   Firmness Level: 

   Medium (46 Pa/mm)

   Bed-In-A-Box: 

   Yes

   Edge Support: 

   See all our test results 

   The Tuft and Needle Mint is a great option if you're looking for a cheaper California King-size mattress, especially if you sleep with a partner and don't mind its less durable design. This Medium mattress's all-foam design offers much better motion isolation, and it performs well for a range of sleepers. It provides good support for most people, which helps keep your spine in a neutral position, and its soft comfort layers let you sink in significantly, making it suitable for side sleepers. It's not as enveloping as the Helix Midnight Luxe 2025, since its sleeping surface isn't as contouring and responds quicker when you move, so you might also prefer it if you don't like mattresses with a hugging feel.

   Pick if: You're a hot sleeper with a partner, and motion isolation is a priority.
   Skip if: You want a very springy mattress for ease of movement.

   This all-foam mattress is also a great option if you sleep with a partner and you're concerned about the narrower width of California King beds compared to standard King-size mattresses. You won't feel most of your partner's movements, and even when you do, motion dissipates extremely quickly, making it less likely to bother you. Its sturdy edges give you a more comfortable sleeping space, and it offers great cooling when you first get into bed and all night, making it suitable for hot sleepers. However, compared to the previous pick, it uses a smaller proportion of good-quality foam, making it prone to forming permanent impressions a little sooner.

   See our review 

3. Best Budget California King Mattress

   

   

   

   

   
   Casper Cooling Select 0 
   
   Side Sleeping

   7.4

   Back Sleeping

   7.4

   Stomach Sleeping

   7.5

   Longevity

   6.7

   Cooling

   7.9

   Motion Dissipation

   8.6

   Firmness Level: 

   Medium (42 Pa/mm)

   Bed-In-A-Box: 

   Yes

   Edge Support: 

   See all our test results 

   If you're looking for a budget-friendly California King, you might prefer the Casper Cooling Select, as long as you don't mind a worse cooling performance. This Medium all-foam mattress is available at Costco (U.S.). Its comfort layers are firmer than the Tuft and Needle Mint's, so you'll sink in less, and it provides less pressure relief for lighter side sleepers. Otherwise, it offers good pressure relief and support for most sleepers and sleeping positions, along with a fairly bouncy and responsive design, so you won't feel overly enveloped or stuck in place.

   Pick if: You want a bouncy mattress with strong motion isolation and sturdy edges.
   Skip if: You're a hot sleeper or lighter side sleeper.

   This mattress has excellent motion isolation. You'll feel bigger movements, like your partner rolling over or getting into bed, but motion is mostly felt near the source and dissipates quickly, so it's less likely to bother you. It has good edge support, so couples sharing a California King won't feel cramped. It's also reasonably durable, with a mix of low, good, and high-quality foam, so it'll maintain its feel and performance for longer versus mattresses with only low-quality foam. However, while its cooling is also very good, it's not as strong as the previous pick's, since our testing found that it dissipates heat somewhat slowly during the first hour you're in bed.

   See our review 

4. Best Cheap California King Mattress

   

   

   

   

   
   Allswell Hybrid 0 
   
   Side Sleeping

   6.7

   Back Sleeping

   7.3

   Stomach Sleeping

   7.5

   Longevity

   6.0

   Cooling

   8.3

   Motion Dissipation

   8.8

   Firmness Level: 

   Medium-Firm (54 Pa/mm)

   Bed-In-A-Box: 

   Yes

   Edge Support: 

   See all our test results 

   If you're looking to spend as little as possible on a comfortable mattress, consider the Allswell Hybrid, which is available in a California King size for around $500 or less. This Medium-Firm hybrid mattress is best suited for combination sleepers, since average-weight and especially lighter people may want better pressure relief for dedicated side sleeping. However, whatever your weight, it'll do a satisfactory job of keeping your spine aligned, and its bouncier design makes changing sleeping positions feel easier, so it's a great option for most combination sleepers.

   Pick if: You want an inexpensive mattress with strong motion isolation and sturdy edges.
   Skip if: Durability is a priority, or you're a lighter side sleeper.

   Its excellent edge support is a plus for couples concerned about having enough room on a California King bed, and its excellent motion isolation allows you to sleep peacefully with a partner unless you're a very light sleeper. However, it doesn't feel very cool when you first get into bed, so it's not ideal for hot sleepers who need to feel cool as they fall asleep. That said, it does a better job of cooling over eight hours, so it won't seem to get warmer and warmer all night. Unfortunately, as you might expect from a cheaper mattress, it's not very durable, since it has only one layer of good-quality foam. This makes it prone to forming permanent indentations sooner than the more expensive mattresses recommended here.

   See our review 

5. Best California King Mattress For Cooling

   

   

   

   

   
   Purple RestorePlus Hybrid 0 
   
   Side Sleeping

   7.1

   Back Sleeping

   6.8

   Stomach Sleeping

   6.7

   Longevity

   7.4

   Cooling

   9.9

   Motion Dissipation

   8.3

   Firmness Level: 

   Medium (45 Pa/mm)

   Bed-In-A-Box: 

   Yes

   Edge Support: 

   See all our test results 

   If you're a hot sleeper looking for a California King-size bed, you might prefer the Purple RestorePlus Hybrid. While most of the previous picks are suitable for hot sleepers, if you haven't found a mattress cool enough for you, it's worth giving the Purple a try. This Medium hybrid model's unique grid-shaped comfort layer, visible when we cut open the mattress, along with an airy pocket coil layer, helps it offer outstanding cooling. It feels very cool when you first get into bed and maintains its fantastic cooling all night, making it suitable for the hottest sleepers.

   Pick if: Most mattresses make you feel overheated.
   Skip if: Motion isolation is a big priority, or you're a lighter side sleeper.

   The downside is that it works for a narrower range of people compared to mattresses like the Helix Midnight Luxe 2025. If you're in the average or heavier weight category, it's a comfortable option for side sleeping, but lighter people won't get enough pressure relief from its Gel-Flex grid comfort layer, which doesn't let you sink in very much. Otherwise, it's also suitable if you're looking for a California King for you and a partner, since its strong motion isolation means you'll mostly feel bigger movements, and motion dissipates quickly, so it's only felt briefly. That said, if you sleep very lightly, it's worth noting that it doesn't isolate motion as well as the Tuft and Needle Mint, so you're more likely to feel movement throughout the mattress. Also, you can feel the shape of the Gel-Flex Grid under the mattress cover, which may not be to everyone's liking.

   See our review 

Notable Mentions

Recent Updates

1.  Aug 26, 2026 at 12:45 pm: 

   We updated the article to provide price-based picks and focus on Medium mattresses that are comfortable for most people. We replaced the Silk & Snow Mattress with the Casper Cooling Select in the budget category.