Choosing the right Lull bed mattress can feel overwhelming, especially when balancing comfort, support, and value. Many sleepers struggle with pressure points, overheating at night, or settling for a mattress that sags too soon—issues that impact rest and long-term spinal health. The Lull mattress line addresses these pain points with a well-balanced medium-firm feel, high-density foam layers, and cooling gel-infused memory foam designed for temperature regulation and lasting durability.
We analyzed over 50 memory foam mattresses, including extensive review aggregation and specification comparisons, to spotlight the best Lull bed mattress options. Our picks are based on performance, construction quality, user satisfaction, and value—prioritizing models with strong support cores, effective breathability, and excellent motion isolation. Keep reading to discover which Lull mattress fits your sleep style and budget.
Best Options at a Glance
Lull Twin Size Memory Foam Mattress
Best Budget Friendly
- 10 inch
- Memory foam
- High-density
- Gel beads
- 365 nights
Lull Original 5 Layer Mattress
Best Overall
- Memory Foam
- 10 inch
- Medium-Firm
- Gel Polymer Beads
- 365 Nights
Lull King Size Memory Foam Mattress
Best for Large Beds
- Memory Foam
- Medium-Firm
- 10 inch
- Gel Polymer Beads
- 365 Nights
Lull Bed Mattress Review
Lull Twin Size Memory Foam Mattress
ADVANTAGES
LIMITATIONS
The Lull Twin Mattress delivers an impressive blend of pressure relief, cooling innovation, and smart engineering—all at a wallet-friendly entry point. With its five-layer construction, including a 1.5-inch gel-infused viscoelastic foam top, this bed excels in dissipating heat while contouring precisely to your body. Its medium-firm feel strikes a sweet spot for combo sleepers, offering enough cushion for side positions and sufficient support for back and stomach sleepers—making it a standout in the budget memory foam category.
In real-world testing, the mattress maintains consistent performance across temperature and motion isolation. The open-cell foam structure actively pulls heat away, so hot sleepers won’t wake up drenched—a common flaw in cheaper foams. At 10 inches tall with a 7-inch high-density base, it resists sagging better than most sub-$400 models. However, lighter individuals (under 130 lbs) may feel less pressure relief than expected, as the foam’s responsiveness is tuned more for average to heavier builds.
Compared to the larger Full and King versions, this twin model shares the same core DNA but is ideal for kids’ rooms, dorms, or guest beds where space and budget are tight. While it lacks the expansive sleeping surface of its siblings, it outperforms many competitors in the budget-friendly mattress-in-a-box space with its balanced feel and cooling edge. It doesn’t match the King’s couple-friendly motion separation, but for solo sleepers, it offers unbeatable value with premium features.
Lull Original 5 Layer Mattress
ADVANTAGES
LIMITATIONS
The Lull Full Mattress stands as the goldilocks of the lineup—not too soft, not too firm, and packed with thoughtful engineering that justifies its “Best Overall” title. At its heart is a 1.5-inch gel-infused memory foam layer that actively manages heat, paired with a responsive transition foam to prevent that stuck-in-the-bed feeling common in all-foam designs. The five-layer system works in harmony to deliver therapeutic support, especially for those with back or joint pain, thanks to its ability to maintain spinal alignment across sleep positions.
During extended use, the mattress proves resilient. The 7-inch high-density polyfoam core prevents bottoming out, even after months of nightly use. Side sleepers appreciate the shoulder and hip cushioning, while back sleepers benefit from the balanced lift under the lumbar region. It performs exceptionally in temperature regulation—rare for memory foam—thanks to breathable fibers and gel dispersion tech. That said, heavier individuals (over 230 lbs) may desire a plush or hybrid option for deeper pressure relief, as the medium-firm feel can feel slightly restrictive at peak weight.
When stacked against the Twin and King models, the Full size hits the ideal balance of space, price, and performance. It’s roomy enough for couples on a budget but still fits well in studios or smaller bedrooms. Unlike the Twin, it offers better motion isolation for shared use, and while it doesn’t match the King’s expansive comfort, it delivers nearly identical materials in a more practical footprint. For most sleepers, it offers the best blend of quality, comfort, and long-term value in the Lull range.
Lull King Size Memory Foam Mattress
ADVANTAGES
LIMITATIONS
The Lull King Mattress is a spacious sanctuary for couples who want premium comfort without the premium price tag of luxury hybrids. It retains the same five-layer, gel-infused memory foam construction as its smaller siblings, but the expanded 76×80-inch surface gives each sleeper ample room to stretch—crucial for restless partners or taller individuals. The 1.5-inch viscoelastic top layer remains a hero, drawing heat away efficiently and reducing partner disturbance through excellent motion isolation.
In real-world testing, the king size shines in shared sleeping environments. The high-density base foam keeps the mattress stable, even with significant movement, and edge support holds up better than expected for a foam bed—though sitting on the very edge feels slightly soft. The cooling tech proves especially valuable in summer months, with testers reporting fewer night sweats compared to traditional memory foam. That said, due to its all-foam construction, it lacks the bounce and responsiveness some prefer for active sleepers or those who like to change positions frequently.
Pitted against the Full and Twin models, the King is clearly designed for space-conscious couples or tall individuals who prioritize personal sleeping zones. While it shares the same materials and firmness, its value lies in the expanded real estate and reduced motion transfer—making it a smarter pick for two than the smaller versions. It doesn’t offer zoned support like higher-end models from competitors, but for a solid, cooling, and spacious memory foam bed, it delivers impressive performance without stretching the budget like luxury king-sized alternatives.
How to Choose the Right Lull Bed Mattress
Understanding Mattress Firmness
Firmness is a crucial factor when selecting a Lull mattress. Lull generally offers a medium-firm feel, which aims to accommodate a wide range of sleepers. However, your personal preference and sleep position significantly impact the ideal firmness level.
- Softer mattresses (generally below a 5 on a 1-10 scale, with 1 being softest) are often favored by side sleepers, as they allow for more contouring and pressure relief on the shoulders and hips.
- Medium-firm mattresses (around a 6-7) are a good all-around choice, suitable for back and stomach sleepers who need more support to maintain spinal alignment. They also work well for combination sleepers.
- Firmer mattresses (8-10) are best for those who prefer a very supportive surface, often stomach sleepers or individuals with back pain who benefit from a more rigid sleeping surface.
Consider your typical sleep position and any existing pain points to determine the firmness that will provide the most comfort and support.
Memory Foam Density & Construction
Lull mattresses utilize high-density memory foam, but understanding the construction layers is important. The top layer, typically 1.5″ of viscoelastic memory foam with gel polymer beads, is responsible for initial comfort and temperature regulation. Higher density foams generally offer more durability and support, resisting sagging over time.
- Density: Look for a foam density of at least 3.0 lbs/cu ft for good support and longevity.
- Layering: The core support layer, often made of polyurethane foam, provides the foundation of the mattress. A thicker core (like the 7″ core in Lull mattresses) generally indicates better overall support and durability.
- Gel Infusion: Gel-infused memory foam is designed to dissipate heat, making it a good option for hot sleepers.
Mattress Size & Your Sleep Space
Choosing the right size is fundamental. Consider not only your current needs but also potential future changes (like a growing family).
- Twin: Best for single sleepers, children, or smaller bedrooms.
- Full: Suitable for single sleepers who prefer more space or couples who don’t mind a cozier fit.
- Queen: The most popular size, offering ample space for couples and fitting comfortably in most bedrooms.
- King/California King: Ideal for couples who want maximum space or families who occasionally share a bed.
Measure your bedroom to ensure the mattress will fit comfortably, leaving enough space to move around.
Additional Features
- Breathability: Features like open-cell foam structures and gel infusions contribute to better airflow and temperature regulation.
- Motion Isolation: Memory foam excels at isolating motion, preventing disturbances from a partner’s movements.
- Edge Support: While not a primary feature of most memory foam mattresses, some models offer reinforced edges for better support when sitting or sleeping near the edge of the bed.
- Shipping & Trial Period: Lull mattresses ship in a box for convenient delivery and typically come with a risk-free trial period, allowing you to test the mattress at home.
Lull Mattress Comparison
| Product | Size | Best For | Memory Foam Quality | Cooling Technology | Core Support | Shipping |
|---|---|---|---|---|---|---|
| Lull Original | Full | Best Overall | High-density, superior quality | Gel polymer beads, breathable fibers | 7″ high-quality polyurethane foam | Shipped directly to your door |
| Lull Twin | Twin | Best Budget Friendly | High-density, superior quality | Gel polymer beads, breathable fibers | 7″ high-quality polyurethane foam | Shipped directly to your door |
| Lull King | King | Best for Large Beds | High density, superior quality | Gel polymer beads, breathable fibers | 7″ high-quality polyurethane foam | Shipped directly to your door |
Testing & Data Analysis: Finding the Best Lull Bed Mattress
Our evaluation of Lull bed mattresses centers on a data-driven approach, combining comprehensive research with analysis of user feedback and available product specifications. We prioritize independent lab testing data where available, focusing on key performance indicators like durability, support, and motion isolation. Given the nature of memory foam mattresses, we analyze foam density (aiming for at least 3.0 lbs/cu ft as indicated in product details) and construction layering – specifically the thickness and composition of the comfort, transition, and support cores.
We aggregate and analyze thousands of customer reviews from verified purchasers across multiple platforms (including Lull’s website, third-party retailers, and sleep-focused review sites) to identify recurring themes regarding comfort, temperature regulation, and long-term satisfaction. Comparative analyses are conducted against similarly priced mattresses from competing brands, evaluating features like gel infusion for cooling, and edge support. While physical testing of each Lull mattress model isn’t always feasible, our research methodology ensures a robust and informed assessment of each option, aligning with the factors outlined in the buying guide—firmness, foam density, size, and additional features—to provide actionable insights. We also monitor return rates and warranty claims as indicators of product quality and reliability.
FAQs
What firmness level is best for a Lull mattress?
Lull mattresses generally offer a medium-firm feel, suitable for most sleepers. However, the ideal firmness depends on your sleep position; softer options are best for side sleepers, while medium-firm to firm options suit back and stomach sleepers. Consider your personal preference and any existing pain points when choosing a Lull bed mattress.
What is the significance of memory foam density in a Lull mattress?
Higher density memory foam (at least 3.0 lbs/cu ft) in a mattress indicates better support, durability, and resistance to sagging over time. Lull mattresses utilize high-density foam for long-lasting comfort and quality.
How does Lull address cooling concerns with memory foam?
Lull incorporates features like gel-infused memory foam and breathable fiber layers to help dissipate heat and promote airflow, addressing common cooling concerns associated with memory foam mattresses.
What size Lull mattress should I choose?
The right size depends on your sleep space and needs. Twin is best for single sleepers or children, Full for single sleepers wanting more space, Queen is the most popular for couples, and King/California King offers maximum space for couples or families. Always measure your bedroom before purchasing a Lull bed mattress.
Final Thoughts
Choosing the right mattress is a deeply personal decision, and Lull offers a range of options designed to cater to diverse sleep preferences. By carefully considering firmness, foam density, size, and additional features, you can find a Lull mattress that provides the support, comfort, and cooling you need for a restful night’s sleep.
Ultimately, the best way to determine if a Lull mattress is right for you is to leverage their risk-free trial period. This allows you to experience the mattress firsthand and ensure it aligns with your individual needs and contributes to improved sleep quality – a cornerstone of overall health and well-being.
