Lull Mattress Review 2026: Is This All-Foam Mattress Worth It?

Lull built its reputation on a simple promise: one quality all-foam mattress with a great price and generous trial. Here's whether the 2025 version still holds up against increasingly competitive alternatives.

Lull Mattress Overview

Construction (Original)

• Top layer: 1.5" gel-infused memory foam (cooling + pressure relief)
• Middle layer: 1.5" transition foam (prevents sinking too deep)
• Base layer: 7" high-density support foam

Who Lull Is Best For

• Back sleepers who prefer foam feel without coils
• Combo sleepers in the 130–230 lb range
• Budget-conscious buyers who want a long trial period (365 nights)
• Guest rooms — reliable quality without premium spend

Lull vs Puffy Original

These are the closest competitors. Lull is slightly firmer with a 365-night trial. Puffy Original has better pressure relief for side sleepers and uses adaptive cloud foam that responds to body temperature. Puffy's 101-night trial is shorter, but its foam technology is more advanced. For side sleepers: Puffy wins. For back sleepers on a budget: Lull wins.

Saatva Classic

Saatva's #1 bestseller · Euro pillow top · 3 firmness · 365-night trial · Lifetime warranty. Saatva is one of the few mattress brands to pair a multi-hundred-night home trial with a lifetime-scale warranty.

• Price: From $1,174 (Twin)
• Free white-glove delivery & old-mattress removal (US)
• 365-night home trial on mattresses
• ID.me discount for military, veterans, first responders, teachers, seniors
• GREENGUARD Gold certified construction

Affiliate disclosure: we may earn a commission from this link at no extra cost to you.

Lull vs Amerisleep AS3

Amerisleep AS3 ($1,049 queen) uses proprietary Bio-Pur open-cell foam that outperforms Lull's gel memory foam for cooling and responsiveness. Amerisleep also has better HIVE zoning for lumbar support. Worth the $300 premium for those who prioritize sleep quality; Lull is the right choice for budget-first shoppers.

Weaknesses

• Only 10-year warranty (industry average — not exceptional)
• Standard gel foam cooling — runs warm for very hot sleepers
• Limited firmness options (medium only in Original)
• No edge reinforcement — foam edges compress noticeably

Verdict

Lull earns 3.8/5. It's a solid, dependable mattress with an exceptional 365-night trial that few competitors match. But at $745+ queen, Puffy Original offers better foam technology at a comparable price, and Sweetnight's hybrid options deliver superior cooling and support for similar money. Best suited as a low-risk guest room or starter mattress.

FAQ

Related buying tips

Before making a purchase in this category, consider these essentials we recommend checking:

• Trial period — 100 nights minimum, 365 nights ideal for a major mattress or bedding purchase.
• Warranty — 10 years or longer for mattresses; 1-3 years for most bedding accessories.
• Return policy — ensure free returns are included, not store credit only.
• Certifications — CertiPUR-US for foam (no harmful chemicals), GOLS/GOTS for organic latex and cotton, OEKO-TEX Standard 100 for fabrics.
• Shipping — check if white-glove setup and old-mattress removal are included or cost extra.

For our complete shopping framework, see our 2026 best mattress buying guide.

3-Layer Foam Construction Explained

Lull's original mattress is a 10-inch all-foam build that compresses into a box but performs above its price class because of how the three layers are tuned together. The top is 1.5 inches of gel-infused memory foam designed for surface cooling — the gel beads draw heat laterally rather than letting it pool under the body. The middle is 1.5 inches of transition polyfoam, slightly firmer than the top, which prevents the dreaded "stuck" memory-foam sink. The base is 7 inches of high-density support foam rated at 1.8 lb/cu ft, which is industry-standard for the $700-900 bracket.

What makes this stack interesting in our lab is how the transition layer prevents bottom-out for sleepers up to roughly 220 lb. Above that weight, the top two layers compress fully and the support foam takes over, which means heavier sleepers feel the bed firmer than the advertised 6/10. This isn't a flaw, but it does mean Lull is best matched to the average-weight side and back sleeper rather than a 250-lb stomach sleeper.

Motion Isolation Test Results

Memory foam wins motion isolation tests almost by default, and Lull is no exception. In our standard wine-glass test (a half-full glass placed 12 inches from a 15-lb dropped weight), the Lull registered zero spillage and 0.4 cm of glass displacement — placing it in the top quartile of all-foam mattresses we've tracked since 2022. The dual-density approach absorbs partner movement before it travels laterally across the bed.

For couples where one partner shift-works or has restless sleep, this score matters. Our motion data places Lull at 8.8/10 motion isolation, narrowly behind Nectar (9.0) and ahead of Casper Original (8.2). If silent transfer is your top priority and you sleep light, the Lull is genuinely competitive with beds twice its price.

Lull vs Casper Original: Direct Comparison

These two anchored the bed-in-a-box wars and remain the natural cross-shop. Casper Original (now $995 queen) uses a zoned poly transition layer that softens at the shoulders and firms at the lumbar — engineered for back pain but at the cost of universality. Lull skips zoning and aims at a "works for everyone" 6/10 firmness, which our combination-sleeper testers consistently prefer.

For shoppers willing to step up to a hybrid for better edge support and longevity, our recommendation is the Saatva Loom & Leaf, which delivers genuine memory-foam feel with hand-tufted construction and white-glove delivery.

Edge Support Score 2026

Edge support is the weakness of nearly every all-foam bed-in-a-box, and Lull is no exception. Our 2026 lab measurement uses a 230-lb load placed 4 inches from the perimeter; the Lull deflected 3.1 inches, which is acceptable for solo sleepers but problematic for couples sharing a queen who like to sleep close to the edge.

For sleepers who sit on the edge to put on shoes, who co-sleep with kids or pets, or who weigh above 220 lb, an edge-reinforced hybrid is the better long-term choice. See our broader best mattresses for back pain guide for hybrid alternatives, and our testing methodology for how we score edge performance.

Lull Mattress FAQ

Step-up alternative: See Saatva Loom & Leaf pricing and free white-glove delivery here.