How Big Is a California King Mattress in Feet?

California King Dimensions in Feet

The California King, often abbreviated as “Cal King,” is the longest of the standard mattress sizes. Its dimensions are:

· 72 inches wide = 6 feet

· 84 inches long = 7 feet

This added length makes it a top choice for individuals over 6 feet tall, offering that extra legroom most standard mattresses fail to provide.

California King vs. Other Mattress Sizes

Let’s break down how the California King compares to other popular mattresses:

Mattress Size	Dimensions (inches)	Dimensions (feet)	Best For
Twin	38" x 75"	3.2' x 6.25'	Kids, solo sleepers, bunk beds
Twin XL	38" x 80"	3.2' x 6.6'	Taller teens, dorms
Full (Double)	54" x 75"	4.5' x 6.25'	Single adults, guest rooms
Queen	60" x 80"	5' x 6.6'	Couples, most common for adults
King	76" x 80"	6.3' x 6.6'	Couples + kids/pets
California King	72" x 84"	6' x 7'	Tall sleepers, luxury spaces

Though it’s 4 inches narrower than a King, the California King offers 4 inches of extra length, making it a favorite for tall people who don’t want their feet hanging off the bed.

Ideal Room Size for a California King

To comfortably fit a California King mattress, your room should be at least:

· Minimum Room Size: 12 feet by 10 feet

· Ideal Room Size: 12 feet by 12 feet or larger

This allows enough space not just for the mattress, but for nightstands, dressers, and walking room. A too-small room can make even the most comfortable mattress feel cramped.

Who Should Buy a California King?

The California King is not for everyone but for the right sleeper, it’s a dream. You should consider a Cal King if:

· You’re over 6 feet tall and need more legroom.

· You sleep with a partner, pet, or child and need extra length.

· You have a large bedroom and want to fill it with a luxurious bed.

· You prefer the feeling of being more stretched out than spread out.

· You’re upgrading your master suite for comfort and aesthetic.

Pros & Cons of California King Mattresses

Pros	Cons
Extra legroom – great for tall sleepers	Narrower width may feel tight for some couples
Luxurious size for master bedrooms	Requires large room – not apartment friendly
Works well with adjustable bases	Specialty sheets and bedding are harder to find
Enough space for pets and kids to join	Heavier and harder to move than smaller mattresses

Top California King Options

1. Spring Air Back Supporter Donna Elite Collection

Overview:
A high-quality, zoned pocket spring mattress with enhanced lumbar support and breathability.

Key Features:

· Zoned spring system for spinal alignment

· Breathable quilted top layer

· Reinforced edge support

· California King size available

Pros	Cons
Ideal for tall back and stomach sleepers	May feel too firm for side sleepers
Excellent airflow and support	Slight motion transfer due to spring system
Affordable for a luxury build	Bulky to move or rotate

Check Price

2. Tempur-Pedic Adapt Medium Hybrid

Overview:
Combines signature Tempur memory foam with a coil system for the perfect balance of contouring and bounce.

Key Features:

· TEMPUR-ES memory foam layer

· Individually wrapped coils

· Cool-to-touch cover

· Antimicrobial treatment

Pros	Cons
Excellent pressure relief	Premium pricing
Motion isolation ideal for couples	Can sleep slightly warm for hot sleepers
Supportive for all sleep types	Very heavy requires two-person handling

Check Price

Mattress Size Comparison Table

Mattress Type	Width (ft)	Length (ft)	Area (sq ft)
Twin	3.2	6.25	20.0
Twin XL	3.2	6.6	21.1
Full (Double)	4.5	6.25	28.1
Queen	5.0	6.6	33.0
King	6.3	6.6	41.6
California King	6.0	7.0	42.0

Visual Graph: Mattress Sizes in Feet

Conclusion

A California King mattress is an ideal choice for tall sleepers, couples who like space, and homeowners with large master bedrooms. While it’s not the widest option, its extra length and luxurious feel make it stand out. Just be sure you have a large enough room and are comfortable sourcing specialty bedding.

Whether you prefer the support of springs or the contouring of foam, there’s a California King mattress to suit every need. It’s a premium investment but one that can transform your sleep quality and bedroom aesthetics.

Frequently Asked Questions

1. How big is a California King in feet?
6 feet wide by 7 feet long.

2. Is a California King bigger than a King?
It’s longer (84" vs 80") but slightly narrower (72" vs 76").

3. Is a California King mattress good for couples?
Yes, especially tall couples or those who co-sleep with pets or kids.

4. What room size do I need for a Cal King?
At least 12’ x 10’, ideally 12’ x 12’ or larger.

5. Will California King sheets fit a regular King?
No. The dimensions are different use Cal King-specific bedding.

6. Can I put a Cal King on a King frame?
No, the fit will be incorrect. You need a Cal King frame.

7. Is the California King available in all mattress types?
Yes foam, hybrid, latex, and innerspring options are widely available.

8. Is it harder to move a California King mattress?
Yes, it’s larger and heavier best handled by two people or pros.

9. Is California King more expensive?
Typically, yes. The size and special bedding raise the cost.

10. What’s the largest standard mattress size?
California King is the longest. For more space, consider custom sizes like Alaskan King.