Serta Perfect Sleeper X Hybrid Level Two Mattress Review: Test Lab Ratings

“For a hybrid mattress, the Perfect Sleeper X Level Two was extremely effective at isolating motion. I found that I could stay asleep without noticing movement on the other side of the mattress.” – Jeremy

Our testing team found that the Perfect Sleeper X Hybrid Level Two provided excellent motion isolation, especially on the medium (5) model.

The softer design absorbed motion better than most hybrid mattresses, and this can be attributed to the two memory foam layers and pocketed innerspring coils. These materials cut down on vibrations from movement that might otherwise ripple across the mattress surface.

Strong performance in this category tends to be most important to couples, especially if either bed partner is easily awakened by movement during the night.

“I could feel pressure melt away as the memory foam adapted to my body. While others might find there to be too much hug, I found it both comfortable and supportive.” – Rachel

Our testing showed that the Perfect Sleeper X Hybrid Level Two delivers top-notch pressure relief, especially for side sleepers weighing up to 230 pounds.

Memory foam excels at relieving pressure by contouring to match the body’s heavier areas and sharp pressure points. In this mattress, the two layers of memory foam work together to minimize pressure buildup around joints, especially the hips and shoulders of side sleepers.

Both models had excellent performance in this category, but the highest ratings went to the softer model that contours more closely to the body.

“I can be sensitive to an overheating mattress, but thankfully, I didn’t have major issues on the mattress. It warmed up but didn’t get excessively hot.” – Brad

Based on our testing, the Perfect Sleeper X Hybrid Level Two is average to slightly above average for maintaining a neutral temperature. Although memory foam can get warm, the gel-infused foam and airflow-permitting coils seemed to have a positive effect for our testers.

The softer medium (5) model hugs the body more tightly, which means it sleeps warmer than the medium firm (6) option. Our results show that either model can work for most people, but hot sleepers may want a mattress without memory foam.

“Despite some perimeter reinforcements in the support core, I could still feel extra compression of the memory foam around the edges. ” – Rachel

Our edge support assessment found that the Perfect Sleeper X Hybrid Level Two had slightly weaker edges than many competing hybrid mattresses. When lying or sitting near the edge, our testers felt themselves sinking deeply into the memory foam layers. This didn’t make the mattress feel unstable, but it was a concern for people who depend on a sturdy edge (for mobility reasons or for sitting and putting on their shoes).

As expected, the medium (5) model felt softer around the edge, making the medium firm (6) model a better option for those who want a more reliable perimeter.

“I sleep on my side and back, and I found that there was some resistance when I wanted to switch positions. It was definitely more challenging on the softer model since it hugged my body more tightly.” – Brad

Our testing team found that ease of movement was significantly different between the two firmness options. Changing sleeping positions on the medium (5) model was more difficult since the softer memory foam closely clings to the body. Because the medium firm (6) model has less sink, our testers said they noticed more bounce from the coils.

Ease of movement is most important to sleepers who move frequently at night, including combination sleepers who regularly shift between sleeping positions.