# SmartLife by King Koil Mattresses

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About SmartLife by King Koil Mattresses
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## Product Grid

[SmartLife Calla Adjustable Mattress](/products/smartlife-calla-plush-mattress)3 ReviewsFrom$5,199Save $800 Today!Clearance[SmartLife Lily Medium Mattress](/products/smartlife-lily-medium-mattress)From$4,799$3,999Frequently Asked Questions

### What is a SmartLife King Koil mattress?

### How does the SmartLife King Koil mattress adjust firmness?

### Is a SmartLife King Koil mattress good for couples?

### Does the SmartLife King Koil mattress track sleep?

### Can a SmartLife King Koil mattress be used on an adjustable base?