MATTRESS SIZES

Upgrading Your Old Mattress?

Choosing the right size mattress is certainly part of the formula for bedtime perfection. If you’re changing to a new mattress size, reviewing dimensions of your room and your new mattress are a must. Now let's get you set up with the perfect size mattress so your SONU Sleep System experience is second to none!

A mattress sizing guide illustrating the size comparable differences between Twin XL, Queen, King, California King and Split King sized mattresses.

SIZE CHART

Select the best fit SONU Sleep System for you and your space.

Twin XL
Full
Queen
King
Cali King
Split King

38" x 80" x 14"
54" x 75" x 14"
60" x 80" x 14"
76" x 80" x 14"
72" x 84" x 14"
76" x 80" x 14"

In addition to personal preference, consider the size of your bedroom, who you’ll be sharing your bed with and available space. Use our guide to gauge the dimensions of all four standard SONU mattress sizes to help you choose the best one for your needs.

Every SONU’s height is 14 inches, while the width and length dimensions are the same as standard U.S. mattress sizes. The Comfort Channel dimensions below describe the negative space in the mattress, while the Support Pillow dimensions describe a single pillow, of the 2 for Twin XL and 4 for Queen, King and Cali King, that are stacked in the Channel.

1 gray icon made up of a circle and a vertical oval that demostrate the size of an average sleeper.

TWIN XL
38” x 80” x 14”

COMFORT CHANNEL: 30” x 14” x 10”
SUPPORT PILLOWS (x2): 28” x 11.5” x 5.2”

The Twin XL mattress is the least wide bed we make at 38 inches wide and 80 inches long. Its compact footprint makes it ideal for single sleepers, or in a set of two, for a split king setup.

2 gray icons made up of a circle and a vertical oval that demostrate the average male & female sizes.

FULL
54" x 75" x 14"

COMFORT CHANNEL: 46” x 14” x 10”
SUPPORT PILLOWS (x4): 21” x 11.5” x 5.2”

A popular size for extra rooms, the Full mattress, fits best in a bedroom that is at least 9 feet by 10 feet. At 54 inches wide and 75 inches long, the Full offers space for couples or individuals.

QUEEN
60" x 80" x 14"

COMFORT CHANNEL: 52” x 14” x 10”
SUPPORT PILLOWS (x4): 24” x 11.5” x 5.2”

The most popular mattress size on the market, the Queen, fits best in a master bedroom that is at least 10 feet by 10 feet. At 60 inches wide and 80 inches long, the Queen offers space for couples or individuals who like having extra room.

KING
76" x 80" x 14"

COMFORT CHANNEL: 68” x 14” x 10”
SUPPORT PILLOWS (x4): 32” x 11.5” x 5.2”

At 76 inches wide and 80 inches long, the King is our widest mattress and fits best in a spacious master bedroom, preferably at least 12 feet by 10 feet.

CALI KING
72" x 84" x 14"

COMFORT CHANNEL: 64” x 14” x 10”
SUPPORT PILLOWS (x4): 30” x 11.5” x 5.2”

Our longest mattress, the California King, is 72 inches wide and 84 inches long. Its generous length makes it ideal for taller individuals, especially people more than six feet tall.

SPLIT KING
76" x 80" x 14"

COMFORT CHANNELS (x2): 30” x 14” x 10”
SUPPORT PILLOWS (x4): 28” x 11.5” x 5.2”

The Split King is two Twin XL sizes next to each other. At a total of 76 inches wide and 80 inches long, the Split King is excellent for couples with an adjustable foundation who wish to be able to adjust to different incline positions from one another.

EXPERIENCE A SONU

Trusted Reviews From Side Sleepers Nationwide

Shoppers and their reviews verified by Fera.ai

Thank YOU! Best mattress out there.
★★★★★
“After being a gymnast for 15 years, I haven't felt this much relief from the pain in my shoulders and my hips while sleeping!! Thank you!”
Steph C.
VERIFIED SHOPPER

YUMA, AZ

Highly recommended!
★★★★★
“Creates the perfect space for your arm if you're a side sleeper. Changed the way I sleep forever.”
Justin S.
VERIFIED SHOPPER

ENTERPRISE, MS

AMAZING
★★★★★
“So I actually own one of these. It's AMAZING. Yes it will take you a few weeks to get "used" to it... But that said, you will be AMAZED at how great your shoulders feel in the morning. Just unreal. Like sleep a full 8 hours without waking up type of sleep.”
Jason R.
VERIFIED SHOPPER

Buffalo, NY

Excellent!
★★★★★
“I have very bad neck and back issues and this mattress is a dream! If you are a side sleeper you will love it and even if you like to sleep on you back you will love it! Very comfortable and totally worth the money!”
Grace L.
VERIFIED SHOPPER

MARTINSVILLE, VA

Fantastic!
★★★★★
“i have suffered from shoulder pain while sleeping for several years, i had just about given up... then i saw this bed and decided one last try. i can't begin to explain what it feels like to sleep through an entire night... for the first time in 20 years the first weekend i had it. I'm so impressed with this bed... because what they are making is making a difference in people's lives.”
Crystal G.
VERIFIED SHOPPER

NEW PALEST., IN

Lives up to the hype
★★★★★
“This comfort channel they made is next level. I never imagined that I would be able to put my arm in the mattress. Takes all the pressure off my shoulder, which I so so need. YES”
Kim J.
VERIFIED SHOPPER

CAPE CORAL, FL

Highly recommended!
★★★★★
“I’m a side sleeper and I used to wake up with a dead feeling arm from lying on it all night. Finally a mattress with a pocket for my arm. I tried all the pillows and even very expensive mattresses in the past, but nothing cured my circulation problems until I got the sonu sleep mattress. I love it!”
Nic D.
VERIFIED SHOPPER

Chicago, IL

Fantastic!
★★★★★
“...Sonu mattresses are in a league all by themselves. This is the most comfortable bed I have ever slept on. I have no more shoulder pain and numbness. I can now sleep through the night and not wake up in pain. If anyone is even thinking about getting a Sonu sleep system don’t think anymore. Pull that trigger. I 100% gaurentee you will not be disappointed.”
Christopher B.
VERIFIED SHOPPER

GRANTVILLE, PA