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Zenhaven Mattress Review: Key Findings From Our Test Lab
The Zenhaven mattress by Saatva is an all-latex mattress with a unique flippable design, offering two distinct firmness options: a medium-soft side (rated 4 on a 10-point scale) and a firmer side (rated 7). This mattress is constructed using eco-friendly materials, including organic cotton, wool, and Dunlop latex, which are certified by the Global Organic Latex Standard (GOLS). The Zenhaven aims to provide pressure relief and effective temperature regulation for a diverse range of sleepers.
The mattress is 10 inches thick and incorporates a layered design. The organic cotton cover, featuring lumbar quilting, offers a soft and breathable surface. Beneath the cover, each side of the mattress includes comfort layers made from organic New Zealand wool and organic Dunlop latex. These layers are designed to offer gentle cushioning while maintaining sufficient pushback to prevent excessive sinking. The latex layers are zoned to provide targeted support to key areas such as the midsection and shoulders, and they feature small holes to enhance airflow and temperature control. The core support layer is also composed of dense, GOLS-certified organic Dunlop latex, contributing to the mattress's stability and bounce.
Testing revealed varied performance across different sleeping styles and body weights. For side sleepers, the medium-soft Luxury Plush side is generally more suitable for individuals under 130 pounds, as it better accommodates the hips and shoulders. Conversely, the firmer Gentle Firm side is recommended for side sleepers over 230 pounds to prevent excessive sinkage. Back sleepers benefit most from the firm Gentle Firm side, particularly those over 130 pounds, due to its responsive latex and lumbar quilting that promotes spinal alignment. Stomach sleepers also require a firmer surface to maintain proper spinal alignment, making the Gentle Firm side the preferred option for this group, regardless of body weight. The medium-soft side proved too yielding for most back and stomach sleepers.
In terms of specific performance metrics, the Zenhaven scored 6/10 for motion isolation. While light vibrations may not be a significant issue, sensitive sleepers might notice movement from a partner due to the natural bounciness of latex. Pressure relief received a 7.5/10, with the combination of latex, wool, and cotton effectively distributing pressure points for most users, though individual preference for firmness played a role. Temperature control scored 8/10, making it a strong choice for hot sleepers, as Dunlop latex is naturally resistant to heat retention and the mattress design incorporates features for enhanced airflow. Edge support was rated 7/10, with the firm side offering better stability at the perimeter compared to the medium-soft side. Ease of movement scored 7.5/10, attributed to the responsive nature of latex, which facilitates changes in sleeping positions. Durability received an impressive 9/10, largely due to the use of dense Dunlop latex, ensuring a lifespan of up to 10 years, though its 10-inch profile is noted as its only potential durability limitation.
Saatva provides a 365-night sleep trial, a limited lifetime warranty, and complimentary White Glove delivery and setup services, including optional old mattress removal. The mattress ships only to the contiguous 48 U.S. states. A $99 processing fee applies to returns during the sleep trial. The warranty covers material defects, with free replacement for the first two years and a $149 processing fee for repairs or re-covering in subsequent years. Additionally, a Fairness Replacement Program allows for discounted purchases of a new mattress after the initial two-year period.
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