Lull Mattress Review: Test Lab Ratings

The Lull’s relatively thin comfort layer, coupled with the bounce of its transition layer, leads to slightly more motion transfer than some all-foam models.

While the 1.5-inch layer of memory foam absorbs some motion, thicker comfort systems tend to isolate motion to a greater extent. Since the transition layer has a latex-like quality to give the bed more bounce, this could also contribute to additional motion transfer.

Most sleepers are unlikely to find this motion transfer significant enough to interfere with their sleep, but individuals who awaken more easily might notice it more.

Most all-foam mattresses have strong pressure-relieving properties, and the Lull follows this trend. Its 1.5-inch layer of memory foam adjusts to the sleeper’s body shape to support their spine while redistributing pressure from their shoulders and hips. The 1.5-inch transition layer gives deeper contouring without excessive sinkage. This strong pressure relief can help reduce aches and pains.

Like other mattresses with memory foam comfort layers, the Lull’s close conforming may trap some heat against the sleeper’s body. However, thanks to a gel-infusion, it may not sleep as hot as many all-foam models. Gel helps wick heat away to keep the surface cooler, so the Lull may be a good option for sleepers who tend to sleep hot but enjoy the hug of memory foam.

Because of its relatively thin comfort layer, the Lull’s edge may feel sturdier than many other models that are constructed of foam. Sleepers do not need to sink in as far to reach the firmer foam of the transition layer and support core, which may make the perimeter of the bed feel more stable. Couples who need more mattress space and individuals who frequently sit near the perimeter of the mattress may find this stable edge particularly useful.

Perceived edge support may also depend on a person’s weight. People who weigh over 230 pounds may feel the perimeter isn’t quite as strong as they’d like, but those who weigh under 130 pounds may find it quite supportive.

The Lull Mattress is moderately easy to move on due to its thinner comfort layer and medium firm feel. Memory foam contours closely to the sleeper and usually responds slowly to changes in pressure, which can slightly impede movement. However, the Lull uses just 1.5 inches of memory foam, so most individuals are unlikely to sink in very far. The transition layer and polyfoam core give extra support to ensure the sleeper is unlikely to feel “trapped in the bed.” Thanks to its medium firm feel, the Lull also has less hug than many memory foam models, which may make it easier to move on. 

Synthetic foams often retain manufacturing odors that are released as the mattress decompresses. New owners may notice a slight smell at first, but this odor is generally considered harmless. The Lull is likely to have similar off-gassing odors to most other mattresses that contain synthetic foams and ship compressed. These odors should air out within a few hours to a few days if you leave the mattress in a well-ventilated room.