Lull Original Mattress Reviews (2026)

Over several weeks, we rotated between back and side sleeping and repeated the same support, cooling, pressure-relief, motion-isolation, responsiveness, edge-support, and durability checks. We also tracked how quickly the mattress reached its full height, compared compression at the center and perimeter, monitored surface temperature during longer sessions, and repeated partner-movement checks from both sides of the bed. Those results were considered alongside comfort notes from testers with different builds and sleep positions.

After 48 hours out of the box, our sample measured 9.9 inches tall and felt like a 6.5 out of 10 for firmness. The first few minutes brought light contouring around the hips and shoulders, but the surface never developed the slow, deep cradle common to softer foam beds. On his back, Carlos found that his hips stayed nearly level with his torso, while Marcus liked the support through his midsection without feeling pinned in place.

The differences became clearer during longer sessions. Mia was comfortable on her side at first, then began changing position as pressure built at her shoulder. The surface temperature rose 7.2°F over 60 minutes and remained 2.6°F above its starting point 10 minutes after she got up, matching Marcus’s impression that the bed warmed as the hour went on.

Motion isolation was the standout. In repeated partner-movement checks, the strongest vibration at the opposite side settled in about 0.8 seconds, and ordinary turns felt muted rather than springy. The perimeter was less convincing: under the same 150-pound load, the edge compressed 3.2 inches compared with 2.1 inches at the center. It stayed usable for lying down, but sitting near the middle of the side made the difference easy to feel.

What we liked

• Stable lumbar support that kept back sleepers from dipping at the hips

• Excellent motion isolation for couples with different sleep schedules

• A consistent medium-firm feel that did not soften noticeably during the test period

Who it is best for

• Back sleepers and combination sleepers who prefer support over a deep foam hug

• Couples who are easily disturbed by a partner’s turns or late-night movement

• Guest rooms that need an approachable, middle-of-the-range firmness

Where it falls short

• Noticeable heat buildup during longer sleep sessions

• Limited cushioning at the shoulder and outer hip for sensitive side sleepers

• More compression at the edge when sitting or sleeping near the perimeter

• Mattress type: All foam

• Height: 10 inches

• Firmness: Medium-firm

• Construction: Quilted breathable cover, 1.5-inch gel-infused memory foam, 1.5-inch transition foam, and 7-inch support core

• Key materials: Aerated open-cell memory foam, cooling gel beads, and high-resilience support foam

• Pricing: Promotion-driven; the final price varies by size and sale period

• Sizes: Twin, Twin XL, Full, Queen, King, and California King

• Queen dimensions and shipping weight: 60 x 80 x 10 inches; 74 pounds

• Shipping: Free in the contiguous United States; orders typically leave the warehouse in 1–2 business days

• Delivery: Compressed in a box with no-contact delivery

• Sleep trial: 365 nights from delivery

• Returns: Pickup of the expanded mattress is arranged during the eligible trial period; the original box is not required

• Warranty: Limited lifetime coverage for the original purchaser, subject to the policy terms

• Foam certification: CertiPUR-US certified

• Assembly: Crafted and assembled in the United States with domestic and imported materials

Choose the Lull Original if you want medium-firm foam that supports the lower back, limits partner disturbance, and does not pull you into a deep cradle. Its restrained contouring is especially comfortable for back sleepers and combination sleepers who spend much of the night on their back.

Choose something else if airflow, strong edges, or deep side-sleep pressure relief matters more. The 12-inch Nectar Classic Memory Foam offers a thicker, more contouring all-foam design. The 12-inch DreamCloud Classic Hybrid adds coils for a livelier feel, easier movement, and more airflow.

Choose the Lull Original when low motion transfer and a stable, medium-firm foam surface matter more than bounce. Its straightforward construction also makes sense for shoppers who want to avoid paying for a taller comfort system they do not need.

Casper The One is the closest match in overall concept. It is also a medium-firm, three-layer foam mattress, but its open-cell comfort foam gives it a more responsive character. Choose Casper if easier repositioning matters; choose Lull if minimizing partner disturbance is the priority.

The 12-inch Nectar Classic Memory Foam uses a thicker profile and places more emphasis on contouring pressure relief. It is the stronger alternative for sleepers who want more cushioning around the shoulders and hips, while the Lull feels flatter and more supportive through the middle.

The 12-inch DreamCloud Classic Hybrid pairs foam with individually wrapped coils. That design adds airflow, bounce, and a more structured perimeter, making it better for hot sleepers and people who change positions often. The Lull remains quieter and less lively when a partner moves.

• Allow up to 48 hours for the mattress to expand before judging its height or firmness.

• Use breathable sheets and a lighter comforter if you tend to sleep warm.

• Side sleepers can try a higher-loft pillow to keep the neck aligned as the shoulder settles into the foam.

• Sit closer to a corner if the middle of the side feels too soft.

• Rotate the mattress from head to foot every three to six months to spread out wear.

• Place it on a flat, supportive foundation so the foam core stays level.

• If shoulder pressure persists, a thin, soft topper is a less expensive first step than replacing the mattress.

• Judge motion isolation by whether movement wakes you, not by whether you can detect any movement at all.

It leans supportive. The top foam cushions the hips and shoulders, but the surface stays flatter and less enveloping than a softer memory-foam mattress.

Yes, especially when motion isolation is the priority. Partner movement stayed contained during testing, although the perimeter compressed when both sleepers moved close to the edge.

It can. The open-cell and gel-infused foams help with initial airflow, but our sample retained noticeable warmth during longer sessions.

It is manageable but not effortless. The surface does not trap the body deeply, though quick turns still require more effort than they would on a responsive hybrid.