Polysleep Zephyr Mattress Review: Test Lab Ratings

Although it doesn’t transfer as much motion as an innerspring mattress, couples may notice some referred movement when their partner shifts positions on the Zephyr Mattress.

Memory foam tends to conform quite closely to the sleeper, which helps absorb motion. The Zephyr contains memory foam, but this foam is not as dense as traditional memory foam, so it doesn’t conform as closely. This may allow stronger movements to ripple across the surface of the bed, though the all-foam construction should muffle the majority of disruptions.

Compared to other foam mattresses, the Zephyr ranks slightly below average on pressure relief. This is due to its medium firm feel and relatively thin memory foam.

The mattress features a zoned construction, with softer foam under the shoulders and firmer foam under the hips and torso. This arrangement is designed to provide targeted support, offering cushioning for common pressure points and firmer support where necessary.

The zoning performs well for side sleepers, who are most likely to experience pressure points at the hips and shoulders. However, the all-foam construction may allow excessive sinking and corresponding pressure buildup for sleepers over 230 pounds.

Foam mattresses tend to absorb and hold body heat, which can make them a poor choice for hot sleepers. However, the Polysleep Zephyr Mattress features gel infusions and open-cell aerated foams meant to mitigate heat retention. The mattress may not sleep as cool as a hybrid or innerspring mattress, but it regulates temperature better than the average foam mattress.
As one of the few foam models with reinforced edges, the Polysleep Zephyr Mattress stands out for its edge support.

Edge support describes the ability of your mattress to support weight and pressure on its edges. When you sit on the edge of a mattress with good edge support, the mattress supports you instead of sinking under your weight. This can be important for people who like to sleep toward the edge of the bed instead of the center.

The high-density polyfoam encasement in the Zephyr Mattress is designed to provide solid support over the entire surface of the bed.

As one of the few foam models with reinforced edges, the Polysleep Zephyr Mattress stands out for its edge support.

Edge support describes the ability of your mattress to support weight and pressure on its edges. When you sit on the edge of a mattress with good edge support, the mattress supports you instead of sinking under your weight. This can be important for people who like to sleep toward the edge of the bed instead of the center.

The high-density polyfoam encasement in the Zephyr Mattress is designed to provide solid support over the entire surface of the bed.

The Zephyr offers relatively strong ease of movement for a foam mattress.

Ease of movement refers to how well you can move across the bed. If you are an active sleeper, this could be an important factor for you. Memory foam mattresses usually do not perform well in this category due to their soft, sinking nature.

Despite containing memory foam, the medium firm Zephyr is fairly quick to regain its original shape. It’s not as responsive as a latex or a hybrid mattress, but most sleepers should be able to move around quite easily.

Sleepers may notice a distinctive odor when unboxing the Zephyr Mattress. The odor is due to off-gassing of volatile organic compounds (VOCs), which occur as a by-product of the foam manufacturing process. Off-gassing is not typically considered harmful, and the smell usually disappears in a few days once the mattress has had a chance to air out.

The Zephyr is CertiPUR-US certified, which means it has been tested and found to have low VOC emissions.