w1-27-mattress: content (v4)

A perfectly balanced foam mattress

Comfortable and pressure-relieving like a softer mattress, but fully supportive like a firmer mattress.

Four layers of high-density memory foam, refined through two years of R&D and 27 rounds of prototyping to provide the perfect balance of comfort, support, responsiveness, and breathability.

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

Gary A.   Verified Buyer 

Like sleeping at a luxury hotel every night. Our new W1.27 Mattress has a great luxury feel, and both my wife and I are sleeping much more deeply than on our old bed...

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The perfect balance of comfort, support, and bounce

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 supportive, and also responsive and breathable. 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 draw heat from your body and disperse it throughout the mattress.

As a result, the W1.27 sleeps three degrees cooler than other foam mattresses, right in the sweet spot for deep, uninterrupted sleep.

Heat Absorption Profile: 3Below™ Foam vs. Conventional Foam:

3Below™ Performance Data


Built on real sleep data

To ensure our products actually perform better, we recruited an army of testers and tracked their sleep, night after night, for more than two years. We tracked sleep quality through 27 rounds of testing, continually refining our product until it delivered deeper and better sleep than anything else.

  • Awake
  • Light Sleep
  • Deep Sleep

Actual Data From Our Sleep Tracking Tests