Choosing between Lull and Purple often comes down to whether you prefer traditional foam with targeted pressure relief or adaptive foam that reacts quickly to movement. Lull offers a more classic foam profile with medium-firm options designed for balanced support, while Purple leans on its proprietary grid material for a responsive, buoyant feel that emphasizes airflow and motion separation. Both brands ship compressed in boxes, cover most of the United States, and include trial and warranty coverage, but differences in construction, feel, and price can make one better suited than the other depending on your sleeping position, temperature preferences, and budget.
Mattress Construction and Materials
Lull build and layering
Lull mattresses are three-layer foam builds designed to balance comfort and support. They typically use a top comfort layer of proprietary foam, a transitional support layer, and a high-density base foam for durability. The covers are soft, knit fabrics intended to feel gentle against the skin, and the overall goal is to deliver traditional foam cushioning with reduced off-gassing and easier setup.
Purple build and materials
Purple mattresses replace the conventional foam stack with a single-layer Smart Comfort Grid made from hyper-elastic polymer. This grid sits atop a high-density foam base, creating a surface that moves and stretches in response to pressure, allowing for quick contouring and strong airflow. The design emphasizes responsiveness, moisture-wicking, and low surface friction, which can reduce heat retention and make position changes smoother.
Firmness, Feel, and Pressure Relief
Lull feel and support
Lull generally delivers a medium-firm feel that aims to cradle the body while maintaining enough lift to support the spine. It performs well for back and side sleepers who want gradual contouring and reduced pressure on hips and shoulders. Because the foam is more traditional, it can feel slightly slower to respond, which some people prefer for a stable, settled sensation.
Purple feel and responsiveness
Purple is known for its quick, dynamic response. The grid compresses and rebounds rapidly, creating a buoyant, floating sensation that many describe as more playful than deeply sinking. This responsiveness can translate into better motion isolation between partners and easier shifting during the night. Side sleepers may find the grid offers enough give at the shoulders, while the firmer architecture helps keep the body aligned.
Cooling and Motion Isolation
Airflow and temperature regulation
Both brands market cooling features, but they approach temperature management differently. Lull uses open-cell foam structures and cover fabrics intended to encourage airflow, though traditional foam can still trap some heat. Purple’s grid is engineered with large gaps that promote constant air circulation, often making it feel cooler through the night, especially for those who tend to sleep hot.
Motion transfer and partner disturbance
Because the Purple grid reacts locally to each movement, it can isolate motion more effectively than many layered foam mattresses. Lull also performs well in motion isolation due to foam thickness and quilted cover, but it may allow slightly more vibration across the surface. If minimizing disturbances from a restless partner is a priority, the grid-based system has a practical edge.
Edge Support, Durability, and Trial Coverage
Edge performance and usability
Lull typically relies on reinforced edge foam, which provides decent support for sitting or sleeping near the side of the bed, though some sink-in can occur compared with sturdily reinforced edges. Purple’s grid and base foam combo usually offers stronger perimeter support, making it easier to get in and out of bed and utilize the full sleeping surface.
Durability and manufacturer coverage
Both mattresses aim for long service life, with Lull emphasizing high-density base foam and Purple depending on the resilience of its polymer grid. Trial and warranty terms are comparable, generally offering a 100-night risk-free trial and multiyear coverage for defects, but specifics can vary by retailer and should be checked before purchasing.
Value, Pricing, and Who Should Choose Which
Lull tends to position itself as a value-oriented foam option with a familiar, gentle feel, while Purple commands a premium for its engineered grid and high-tech approach. If you prefer classic foam with moderate contouring and straightforward support, Lull may be the right fit. If you want a responsive, cooling surface with quick movement and strong edge support, and you’re willing to invest more, Purple could be the better choice.
Quick comparison at a glance
| Attribute | Lull | Purple | Source Type |
|---|---|---|---|
| Primary feel | Medium-firm foam, gradual contour | Responsive grid, quick rebound | Brand specifications |
| Typical price range (twin) | Budget-friendly to mid-range | Mid to premium range | Retailer listings |
| Cooling approach | Open-cell foam, breathable covers | Hyper-elastic grid for airflow | Marketing and materials data |
| Edge support | Moderate, foam-reinforced | Stronger grid-reinforced perimeter | Testing and spec sheets |
| Motion isolation | Good, slight surface transfer | Very good, localized response | Lab and user reports |
Setup, Unboxing, and Real-World Use
Both Lull and Purple compress their mattresses into manageable boxes for shipping, making delivery straightforward and eliminating the need for professional help. Lull tends to have a slight initial foam odor that dissipates within a few days, while Purple’s grid may require a short airing period to soften and reach full responsiveness. In practice, the choice often comes down to nightly comfort preferences, how your body reacts to firmness versus responsiveness, and whether cooling and edge support meet your specific sleep habits.
Final Verdict and Considerations
There is no universally superior option between Lull and Purple; the best mattress is the one that aligns with your preferred sleep position, temperature sensitivity, and budget. Those who value consistent foam support and a softer landing may find Lull more satisfying and cost-effective. People who enjoy a bouncy, adaptive surface with strong airflow and edge reinforcement may lean toward Purple despite its higher price point. Reviewing trial terms, warranty details, and recent user feedback before committing can help ensure your purchase supports healthy, uninterrupted sleep for years to come.