Why Sleep Foundation Named Helix Midnight Luxe as the Best Mattress in 2026
Sleep Foundation recently named the Helix Midnight Luxe the Best Mattress of 2026. Below is a guest post from Logan Foley, Editor of SleepFoundation, explaining their review process and decision to honor the Midnight Luxe.
New York, NY - July 31, 2026 - Over the past decade, the SleepFoundation.org team has tested thousands of mattresses. Our comprehensive testing methodology captures data about all the factors that matter most in a mattress, from edge support and bounce to cushioning and temperature control.
The Helix Midnight Luxe has earned outstanding marks in virtually every performance category, making it a solid match for the majority of sleepers. This is why we’ve named the Midnight Luxe as our favorite mattress of 2026.
How Sleep Foundation Tests Mattresses
Each mattress we review undergoes a series of hands-on evaluations in our Seattle-based Test Lab. We use a wide range of tools and technology to determine how the mattress stacks up to its competition, and our team members represent various body types and sleep position preferences to ensure our findings are inclusive of most sleepers.
Performance Criteria
During hands-on tests, our team evaluates each mattress using the same set of performance criteria. These factors affect how comfortable the mattress feels, both for individuals sleeping alone and couples sharing a bed. We assign ratings for each performance category listed below, and these ratings contribute to the bed’s overall score.
• Motion isolation: Motion can transfer across a mattress and disrupt sleep for people who are easily disturbed by movement. We drop a series of weights on the mattress and use a vibrometer to measure movement on the surface.
• Temperature control: A mattress with consistent temperature control is important if you sleep hot or live in a warm climate. We use a heat gun to measure surface temperature while our testers are lying on a mattress, and how long it takes for heat to dissipate after they get off the bed.
• Pressure relief: Mattresses that incorporate thick cushioning layers can help ease pressure on areas like the hips and shoulders. We measure pressure relief with a specialized pad, which detects mattress compression and pushback to pinpoint areas where pressure buildup is most likely.
• Durability: The lifespan of a mattress can vary depending on usage and care. However, design quality is also important. We analyze foam density, coil gauge, and other design elements to estimate how long the mattress will last before it noticeably sags or breaks down.
• Ease of movement: If you have mobility issues or frequently change your sleep position, it’s important to have a mattress that doesn’t hinder your movement and make you feel stuck in the bed. Our testers evaluate ease of movement by taking turns rolling across the bed. We also use a kettlebell to measure how fast the surface materials spring back to their original shape.
• Edge support: We check for perimeter stability using different weights, and then our testers sit and lie along the edge of the bed to measure compression depth. Mattresses with perimeter reinforcement are helpful for getting in and out of bed, and allow you to use more of the sleep surface if you share your bed with a partner.
Selection Process
Over 10 years of research at SleepFoundation.org, we’ve compiled a database of construction details and performance ratings for the 2,000+ mattresses that have passed through the Seattle Test Lab’s doors.
To select the best mattress of 2026, we started by narrowing down the top 100 choices. We focused on mattresses from reputable brands that scored an overall rating of at least 8.0 out of 10 from lab tests, earned strong praise from our testing team, and received positive reviews from real customers.
After selecting the finalists, we conducted a new round of hands-on evaluations for the mattresses on our shortlist. Our diverse testing team put the mattresses through their paces in the lab. Once we were finished with the first stage of evaluations, our field testers took these mattresses home to assess how they perform in real-world sleep environments.
Why the Helix Midnight Luxe Won
Score: 9.7/10
Many mattresses score well in multiple categories. However, it’s difficult for a mattress to deliver consistent comfort across different sleeper profiles. While other mattresses stand out from the rest of the pack, our team ultimately chose the Helix Midnight Luxe for its wide appeal and excellent performance ratings across the board.
The Helix Midnight Luxe received near-perfect scores from side sleepers on our team across various weight groups. Many of our back sleepers also awarded strong ratings to the mattress. Even some stomach sleepers found that the Midnight Luxe provides fairly good support, which is rare to see in a mattress that isn’t specifically designed for this sleeping position.
A common issue for memory foam mattresses is that the close cushioning often comes at the expense of responsiveness, making it difficult to move around in bed. The Helix Midnight Luxe combines layers of memory foam with a robust, zoned coil system to deliver a balanced performance and a surface that doesn’t hinder much, if any, movement.
Couples on our testing team appreciated the strong motion isolation and reinforced edges, which allow both partners to spread out and use their half of the bed without the perimeter feeling unstable. As an added bonus, we love that the Midnight Luxe comes with several customization options for people who sleep hot or live with lower back pain.
To round out the offer, Helix offers a free standard shipping, a 120-night sleep trial with free returns, and a lifetime warranty.
Balanced Medium Feel
According to our testing criteria, the Helix Midnight Luxe has a medium firm feel, falling at a 6 on our 1-10 firmness scale. Medium firm is the sweet spot for many sleepers, offering the support they need to keep their spine aligned while also feeling soft enough to cushion pressure points.
The top memory foam layers make the Helix Midnight Luxe feel plush on the surface, while transitional polyfoam and zoned coils deliver strong underlying support. This construction is ideal for side and back sleepers weighing up to 230 pounds, making the mattress a solid option for any couple whose sleep profiles don’t exactly match.
Excellent Pressure Relief
Score: 9.5/10
Pressure relief is especially important for side sleepers, who often experience pain around the hips and shoulders on mattresses that feel too firm. The Helix Midnight Luxe is optimized for side sleepers with a Euro-style pillow-top design, which begins with two layers of memory foam that gently contour to ease these pressure points. The second memory foam layer is fairly dense, allowing it to conform closely and provide more pressure relief than lower-density foams.
Firmer coils in the center third of the bed help support the lumbar area to ensure even spinal alignment, which in turn prevents excessive sagging and sharp pressure buildup in the midsection. Helix also offers an optional upgrade to an ErgoAlign Contour Layer, a zoned foam layer added to the comfort system, for even more back and hip support.
Reliable Motion Isolation
Score: 8.5/10
Memory foam layers in the Helix Midnight Luxe absorb movements to reduce motion transfer, so you’re less likely to wake up when your partner changes sleep positions, and vice versa. Since the Midnight Luxe has ample foam cushioning, it isolates motion better than most competing hybrids with less padding.
In the support core, the pocketed coils flex independently of each other. This prevents the widespread coil bounce you’ll often notice on traditional innersprings. A thin layer of high-density base foam helps keep the coils in place and further stabilizes the mattress.
Strong Temperature Regulation
Score: 8/10
The Helix Midnight Luxe’s cover is made of Tencel, a eucalyptus-derived fabric known for its natural breathability and moisture-wicking properties. In addition to the cover, a cooling gel infusion in the top comfort layer helps to offset the heat retention that often occurs with memory foam. As a hybrid, the Helix Midnight Luxe also has a coil system that promotes air circulation, prevents heat retention, and helps the mattress maintain a comfortable interior temperature.
Very hot sleepers may be interested in the optional GlacioTex cover upgrade. This fabric is engineered to keep the surface of the bed cool by drawing heat away from the body. Helix also offers a CoolForce layer, consisting of phase change material applied directly to the mattress foam that absorbs excess heat and actively cools the bed.