w1-27-mattress: Content (V2)

W1.27 Mattress

A new standard in mattress design

Four layers of high-density memory foam, refined through two years of testing and development to craft the perfect balance of comfort, support, responsiveness, and breathability.

100% Certi-pur verified foam; made entirely in the US.

A Better Mattress By Design

The perfect balance of comfort, support, and responsiveness

To provide a great night’s sleep, your mattress has to be in the sweet spot: soft enough to be comfortable, firm enough to be fully supportive, and responsive enough to let you move easily. We tested our foam system through 27 iterations, using real pressure-mapping and force-resistance data to identify the optimal balance to help you sleep more deeply.

Comfort & Support Performance Data


Breathable and cool

To keep our mattress from overheating, we developed an extraordinary new foam called 3BELOW™. It’s a fully breathable, open-cell material, infused with heat-conductive gel particles. That means it actually draws heat from your body and disperses it throughout the mattress so it escapes more quickly.

Two-Year Sleep Tracking Study

Built on real sleep data

We test all our products with real sleepers, using Up Band activity trackers to capture actual sleep data. We used this data to tirelessly refine the W1.27 until it delivered a better night’s sleep than anything else we could find.