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The Sleep System

The SONU Sleep System is the world's first mattress engineered specifically for side sleepers, featuring a patented Comfort Channel — a 10-inch-deep negative space that lets arms and shoulders sink in rather than getting pinned underneath the body.

Layered Support Pillows inside the channel stay laterally malleable while maintaining vertical support for the head, neck, and upper torso, helping align the spine and reduce the tension that typically causes side sleepers to wake up and roll over. It's hand-built in the USA from 26 custom, CertiPUR-US certified components, with a cooling cover to help regulate temperature through the night.

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Key Features

• Patented Comfort Channel with 10-inch-deep negative space for arms and shoulders

• Includes 4 Support Pillows (2 for Twin XL) and matching pillowcases

• CertiPUR-US certified foam; low VOC emissions

• Handcrafted in the USA from 26 custom components

• Available in Twin XL, Full, Queen, King, and Cali King; medium-firm support

Reviews

"I tried many remedies but none solved my problem until I discovered the Sonu mattress with the cut out arm channels. This has become a game changer. No more shoulder pain, no more dead arms, and the most comfortable sleep I have had in years."

About

Sonu Sleep

Sonu Sleep created a design around a patented "Comfort Channel" that gives arms and shoulders a negative-space pocket to sink into instead of compressing against a flat surface.

Founded by engineer Stason Strong after years of designing and testing, the SONU Sleep System is handcrafted from 26 custom components and manufactured in the USA, addressing the shoulder pain, arm numbness, and restless sleep that side sleepers have lived with on traditional mattresses. The brand has become known among physical therapists, chiropractors, and even pro athletes as a genuine solution for pressure relief during sleep.