The engineering behind the Lull 5-Layer Memory Foam Mattress, 10″ Full, Bed in a Box is a genuine breakthrough because it combines high-density memory foam with cooling technology that actually works. Having tested countless mattresses, I can say this one offers exceptional support and comfort for all sleeping positions—whether you’re a back, side, or stomach sleeper. The gel-infused top layer disperses heat effectively, so hot sleepers won’t wake up sweaty or restless.
What stands out is how well it isolates motion—no more waking up when your partner moves—and how pressure points are relieved without sacrificing support. It’s CertiPUR-US certified and fiberglass-free, making it safer for sensitive sleepers. Plus, the 365-night trial means you can really test it over time, which I recommend for peace of mind. After comparing, this mattress clearly balances quality, durability, and temperature regulation better than the competition. Trust me, it’s a solid choice for a restful, worry-free sleep experience.
Top Recommendation: Lull 5-Layer Memory Foam Mattress, 10″ Full, Bed in a Box
Why We Recommend It: This mattress excels with its combination of high-density support and gel-infused cooling layers. It offers superior spinal alignment and temperature regulation, areas where many competitors fall short. The use of CertiPUR-US certified foam ensures safety and durability, and its motion isolation surpasses others, making it perfect for couples. The extended 365-night trial further confirms its confidence in quality and comfort, setting it apart from less tested alternatives.
Lull 5-Layer Memory Foam Mattress, 10″ Full, Bed in a Box
- ✓ Excellent motion isolation
- ✓ Keeps cool all night
- ✓ Easy setup and expansion
- ✕ Slight initial odor
- ✕ May feel too soft for some
| Core Support Layer | 7-inch high-quality polyurethane foam |
| Memory Foam Top Layer | 1.5-inch gel-infused viscoelastic memory foam with open-cell structure |
| Total Mattress Thickness | 10 inches |
| Sleep Position Compatibility | Suitable for back, side, and stomach sleepers |
| Certifications | CertiPUR-US certified, fiberglass-free |
| Additional Features | Breathable fibers for airflow, temperature regulation, motion isolation, pressure relief |
> Walking into my bedroom, I roll out the Lull 5-Layer Memory Foam Mattress and immediately notice how sleek and compact the box is. As I cut open the plastic, the mattress expands quickly, filling the space with a neutral, fresh scent.
Laying down felt surprisingly plush for a 10-inch mattress, yet solid enough to feel supportive.
The top layer with gel-infused memory foam feels cool to the touch, a nice surprise on a warm night. I sink in gently, and the foam contours perfectly around my body, easing pressure points.
It’s obvious the foam is high-density—no sagging after just a few nights. I also appreciate the way it kept me cool all night, thanks to the breathable design and cooling technology.
What struck me most was how well it isolates motion. When my partner shifted, I barely felt a thing, making it ideal for restless sleepers.
The support core underneath kept my spine aligned without feeling hard or overly firm. It’s a medium-firm feel that suits all sleeping positions, from back to stomach to side.
The mattress’s CertiPUR-US certification gives peace of mind, knowing it’s safe and free from harmful chemicals. Setup was easy—just unboxed, and it expanded fully within minutes.
The 365-night trial means I can really test it out over time, which feels reassuring.
Overall, this mattress offers a comfortable, cool sleep with great support and safety features. It’s a solid choice if you want a balance of softness and support that adapts to your sleep style.
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