AS3 All-Foam
All-foam construction
- More contouring
- Stronger motion isolation
- Smooth foam response
- A strong option for sleepers who want a more body-hugging feel
Tom’s Guide named the Amerisleep AS3 a winner in the Bedroom and sleep section of its Smart Home Awards 2026, citing the mattress’s balanced comfort and support, motion isolation, edge support, and year-round temperature regulation. The recognition applies to the AS3 product family, available in both all-foam and hybrid configurations, and is not a number-one or overall-best ranking.
Tom’s Guide named the Amerisleep AS3 a winner in the Bedroom and sleep section of its Smart Home Awards 2026. In the write-up, the editors highlighted the AS3’s balance of contouring comfort and support, along with its motion isolation, edge support, and temperature regulation.
Shop the AS3
Tom’s Guide noted that the Amerisleep AS3 is available in both all-foam and hybrid configurations. The editors highlighted the mattress for its:
– balanced comfort and support
– motion isolation
– edge support
– temperature regulation throughout the year
These observations belong to Tom’s Guide. Comfort preferences still vary by sleeper, which is why Amerisleep backs the AS3 with a 100-night sleep trial.
If temperature is your first concern, you can also compare Amerisleep’s other cooling mattresses before you decide.
The AS3 is a popular medium-feel mattress, designed to balance cushioning and support, making it a practical starting point for many side, back, and combination sleepers.
The AS3 is designed to provide noticeable contouring without the deep, slow sink many shoppers associate with traditional memory foam. That middle firmness is one reason the AS3 comes up often for side sleepers, who tend to want cushioning at the shoulder and hip while the waist stays supported.
Tom’s Guide specifically praised the AS3’s motion isolation—an important feature for couples, light sleepers, and anyone sharing a bed with a restless partner.
The editors also highlighted edge support, which helps sleepers use more of the mattress surface and feel supported near the perimeter.
The AS3 is available in two construction options, available directly from Amerisleep. Both keep the same medium feel, but they deliver that feel differently.
Choose the construction that best matches your preferences. If coil and foam builds are new to you, it helps to read how hybrid mattresses work before you compare the two feels.
All-foam construction
Hybrid construction

In addition to Tom’s Guide’s editorial recognition, shoppers may also consider:
Tom’s Guide provides the editorial assessment. Amerisleep provides the product details, customer reviews, trial, and warranty terms.
Tom’s Guide named the Amerisleep AS3 a winner in the Bedroom and sleep section of its Smart Home Awards 2026. Tom’s Guide identified the winner as the ‘Amerisleep AS3’ and noted that it is available in both all-foam and hybrid configurations. The recognition therefore applies to the AS3 product family.
The award recognizes the AS3 product family; it does not mean the AS3 was the only mattress recognized or that it is the best fit for every sleeper. See Tom’s Guide’s Smart Home Awards 2026 coverage for the original award description
Yes. Tom’s Guide named the Amerisleep AS3 a winner in the Bedroom and sleep section of its Smart Home Awards 2026.
Tom’s Guide highlighted the AS3’s contouring comfort and support, motion isolation, edge support, and temperature regulation. The publication also noted that the AS3 is available in all-foam and hybrid configurations.
No. Amerisleep does not describe this recognition as a number-one or overall-best ranking.
Tom’s Guide identified the winner as “Amerisleep AS3” and noted that the product is available in both all-foam and hybrid configurations. The recognition applies to the AS3 product family.
Tom’s Guide specifically praised the AS3’s motion isolation and edge support, two features many couples consider when choosing a mattress. Comfort preferences still vary by sleeper.
The AS3 is available directly from Amerisleep. Shop the AS3 here.
Choose the all-foam AS3 if you want more contouring and motion isolation. Choose the AS3 Hybrid if you want more bounce and airflow.
Ready to compare your options? Explore the AS3 All-Foam and AS3 Hybrid, or take the mattress quiz for help narrowing your choice.
Rosie Osmun, a Certified Sleep Science Coach, brings a wealth of knowledge and expertise to the health and wellness industry. With a degree in Political Science and Government from Arizona State University College of Liberal Arts and Sciences, Rosie's academic achievements provide a solid foundation for her work in sleep and wellness.With over 13 years of experience in the beauty, health, sleep, and wellness industries, Rosie has developed a comprehensive understanding of the science of sleep and its influence on overall health and wellbeing. Her commitment to enhancing sleep quality is reflected in her practical, evidence-based advice and tips.As a regular contributor to the Amerisleep blog, Rosie specializes in reducing back pain while sleeping, optimizing dinners for better sleep, and improving productivity in the mornings. Her articles showcase her fascination with the science of sleep and her dedication to researching and writing about beds.Rosie's contributions to a variety of publications, including Forbes, Bustle, and Healthline, as well as her regular contributions to the Amerisleep blog, underscore her authority in her field. These platforms, recognizing her expertise, rely on her to provide accurate and pertinent information to their readers. Additionally, Rosie's work has been featured in reputable publications like Byrdie, Lifehacker, Men's Journal, EatingWell, and Medical Daily, further solidifying her expertise in the field.
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