The 20 Sleep Number King I8 Mattress of 2026

Sleep Number King I8 Mattress of October 2026: we compared 20 models by features, build quality and value.

This guide covers 20 Sleep Number King I8 Mattress picks, updated October 2026, including REMAirSystem, Novilla, Magic Sleeper and more.

1

Best Seller

Mattress Box Top Outer Shell King 76 x 80

Magic Sleeper

9.5 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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2

Editor's Pick

REM Air System - Sleep Number

REMAirSystem

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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3

Limited Time

Sweetnight CoolNest 14 Inch King Size

SweetNight

9.7 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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4

Top Rated

Sweetnight CoolNest Hybrid King Size Mattress 14

SweetNight

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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5

King Mattress 12 Inch, Luxury Hybrid Mattress King

HSUCCCT

9.9 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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6

Sleepmax King Size Mattress 14 Inch

Sleepmax

9.9 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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7

REM Air System - Sleep Number

REMAirSystem

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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8

EGOHOME King Size Memory Foam Mattress

9.6 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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9

REM Air System - Sleep Number

REMAirSystem

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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10

Waterproof Quilted Split King Mattress Protector

Kingnex

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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11

Novilla King Size Mattress in a Box

Novilla

9.6 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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12

Kingnex Waterproof Split Top King Mattress

Kingnex

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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13

Sleepmax King Mattress 14 inch

Sleepmax

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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14

Novilla Bliss King Mattress

Novilla

9.6 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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15

BedStory Firm King Mattress 14 Inch

BedStory

9.9 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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16

BedStory King Size Hybrid Mattress Firm

BedStory

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17

Compatible with Select Comfort or Sleep Number

Behugio

9.5 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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18

REM Air System - Sleep Number

REMAirSystem

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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19

Kingnex Waterproof Split Top Cal King Mattress

Kingnex

9.8 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

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20

King Size Mattress, 12 Inch Hybrid Mattress King

LoadEase

9.7 /10

AI Score

The AI Score (0 to 10) is calculated automatically from product data such as customer ratings and the number of reviews. It is not based on hands-on testing, and brands cannot pay to change it. Learn more ›

View on Amazon.com

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