Journal

CODA Journal

Explore the science, philosophy, and craft behind CODA.

Sleep Science · October 2026

Motion isolation: the secret to peaceful sleep together

Why you feel every movement your partner makes during the night, and how the right mattress limits disturbances.

Sleep Science · July 2026

How to choose the right pillow for quality sleep

The pillow is one of the most underestimated factors for good sleep. Here’s how to choose the right one based on your position, temperature, and the support your body actually needs.

Sleep Science · March 2026

How to choose a mattress quickly, easily, and correctly?

A short guide with the 5 most important questions that will help you find the right mattress for you.

Materials · March 2026

Springs or foam: why choosing the right mattress doesn’t start here

The classic springs-vs-foam debate is the wrong question. Here’s what to ask instead — and why hybrids solve it.

Lifestyle · April 2026

Sleeping with a partner — the compromise nobody talks about

Different bodies, temperatures, and sleep styles under one mattress. Why hybrids end the nightly compromise.

Sleep Science · May 2026

How much does bad sleep really cost?

Fatigue, coffee, sick days, impulsive spending — the hidden price of bad sleep, and why a mattress is rarely the biggest expense.

Lifestyle · June 2026

What does good sleep look like?

How a truly rested morning actually feels — and three simple questions to check the quality of your sleep.