Amerisleep AS3 Hybrid Review (2026): Dr. Colleen Ehrnstrom’s Thoughts

Dr. Colleen Ehrnstrom is an experienced licensed clinical psychologist who specializes in acceptance and commitment therapy (ACT) and cognitive behavioral therapy (CBT) and co-authored a book on treating insomnia. She works at the University of Colorado and maintains a healthy work-life balance that includes getting a good night’s sleep. Read her full bio here.

I previously tested the memory foam Amerisleep AS3 mattress for over two months, finding that it complemented my sleep needs as a 180-pound side sleeper quite well. I was so curious, though, about what it would be like to sleep on the AS3 Hybrid counterpart, and EachNight was kind enough to give me the chance to review it and share my honest thoughts.

I know firsthand how pivotal quality rest is for mental and physical well-being. Using my decades of expertise in sleep health, I will evaluate all aspects of this mattress to provide a comprehensive analysis for shoppers seeking their perfect bed. Let’s dive in!

Suitability of the Amerisleep AS3 Hybrid mattress for various types of sleepers, as detailed by Dr. Colleen Ehrnstrom, Ph.D., ABPP.

Unboxing and Mattress Setup

The Amerisleep AS3 Hybrid arrived vacuum-sealed in a compact box, making delivery straightforward. Unboxing took just minutes – I removed the packaging, watched it quickly inflate to full size, and then placed it on my bed frame. The sleek, modern design made a fantastic first impression.

There was no bothersome off-gassing or chemical smell, earning it a perfect 1/5 rating for initial odors, with 1 used to indicate no bothersome smell and 5 for a strong scent. Just like their other mattresses, there were no discernable odors…. ever.

SEE ALSO: Best Hybrid Mattress for Side Sleepers

Premium Materials and Responsive Support

Examining the mattress layers, it was clear that Amerisleep utilized high-quality materials designed to provide comfort and support. The Amerisleep AS3 Hybrid mattress is designed for cooler, more comfortable sleep thanks to its advanced cover, thoughtfully engineered foam layers, and carefully arranged pocketed coils.

First, their cover is made with a unique fiber blend akin to Celliant. This innovative material is known for increasing airflow and transferring body heat away from the surface. The soft, breathable cover stayed cool to the touch as I pressed my hand to the surface to test its feel, and remained that way when I lied down to sleep.

Underneath the cover lies Amerisleep’s proprietary Bio-Pur® memory foam. This material contours to the body to cushion pressure points, while remaining bouncy and responsive. Unlike traditional memory foam, Bio-Pur foam was engineered by Amerisleep to sleep cooler through its advanced open-cell design.

The thick base of resilient, individually wrapped springs added bounce, improving ease of movement. After weeks of testing, the mattress showed no signs of impressions or sagging.

The edge support was exceptional, thanks to the sturdy pocketed coil hybrid design. Much better than what the memory foam-only mattress offered, as I covered in my Amerisleep AS3 review. I give the hybrid a 4 out of 5 in this category.

It maintained its structure night after night. I was thoroughly impressed by the exquisite craftsmanship and gave it a perfect 5/5 durability rating. While it is a new mattress still, I have no concerns about how long it is going to last.

Cushioned Yet Supportive Medium Feel

On the 10-point firmness scale, I’d rate this mattress around a 5.5, right in the medium sweet spot. This is when neither a 1 nor a 5 is the best score out of five, as I would consider those reserved for extremely soft or firm feels. But the AS3 Hybrid was a top-tier 4 out of 5 when it cam to firmness, feeling supportive yet ready to cradle me.

Lying down, I felt gentle contouring and pressure relief with adequate support for my frame. The quick response foams adapted to my shape while preventing sagging around the hips. I would give the AS3 a perfect 5/5 when it comes to its support and comfort!

Consistent Comfort in All Sleep Positions

I tested the mattress in both my preferred back and side sleeping positions. Each time, my spine remained properly aligned with no uncomfortable sinking.

There was excellent edge support and stability across the mattress’s entire surface. Despite my weight, I didn’t sink in excessively or feel enveloped by the bed.

The support and comfort remained consistent over my many nights of testing and in all sleeping positions – a true feat. For this, I give the Amerisleep AS3 Hybrid a perfect 5/5 pressure relief score.

Minimal Motion Transfer

This hybrid mattress isolated motion extremely well. I barely noticed my partner’s movements throughout the night, even when changing positions or getting in/out of bed. For motion isolation, it earns top marks.

Moving itself was also an easy task. The buoyant foams and coils rebounded rapidly, so I never felt “stuck” in an impression. It was comfortable sitting on it and reading or while sleeping.

Cool, Sweat-Free Sleep

As someone prone to sleeping hot, I was thrilled the Amerisleep AS3 Hybrid slept cool and comfortable, even during warm summer nights. I tested it through variable temperatures and slept comfortably without any heat-related disturbance.

The strategic airflow design and breathable materials wicked away heat and moisture, preventing sweaty awakenings. I stayed blissfully cool without needing extra fans or blankets.

For temperature regulation, this exceptional mattress earns another perfect 5/5 rating.

Ultimate Value and Satisfaction

Considering the exceptional craftsmanship, premium materials, and sheer comfort of the Amerisleep AS3 hybrid mattress, I believe it provides top-tier value.

It outperforms competitors that charge double the price, offering an unparalleled sleep experience for years to come. For shoppers seeking the perfect balance of support, comfort and breathability, the AS3 Hybrid is a worthwhile investment.

My one quibble is that this mattress is heavy. However, I can’t imagine you can do much about that, as it reflects the benefits of the materials and the bed itself.

Amerisleep AS3 Hybrid Mattress Sizes and Prices

What Other Customers Thought of the AS3 Hybrid

Before purchasing the Amerisleep AS3 Hybrid, I wanted to get a sense of real customer experiences with this mattress. As one of Amerisleep’s most popular models, there are numerous reviews from satisfied sleepers praising the AS3 Hybrid’s advanced comfort and support.

Here are some highlights from top-rated verified reviews that give you a feel for what sleeping on the AS3 Hybrid is really like:

• JR called it the “best mattress I’ve ever bought.” Owning the AS3 for three years, they’ve found it’s eliminated discomfort and lower back pain, has maintained its shape, and doesn’t cause overheating. While other mattresses they’ve tried in the past often caused them back pain and muscle cramps, they value the comfort of the AS3 enough that they plan to buy the same mattress for their vacation home.
• Shelby found the AS3 a great choice for alleviating lower back pain and hip bursitis. Previously they slept on firm mattresses but needed a softer option due to their health issues. The AS3 provided the right balance of softness and support, resulting in minimal pain upon waking.
• Mak describes the AS3 as life-changing. They had been experiencing back pain, hip pain, and neck pain for two years, likely due to childbirth, and said they were miserable because of it. After extensive research, they chose the AS3, which they found to be excellent in terms of both the product itself and customer service. They rate it 10/10 and believe it greatly improved their comfort and well-being.

Dr. Colleen Ehrnstrom’s Final Score Tally

Dr. Jordan Burns’ Final Score Tally

Tester Notes: Our team of experts and a diverse group of consumers have rigorously tested the Amerisleep AS3 Hybrid mattress. One tester, a 6’4″, 195 lb male, specifically noted, “Best night’s sleep in a long time, primarily because motion from your partner doesn’t carry over to your side.” These evaluations corroborate the mattress’s high score in minimizing motion transfer, providing a comprehensive understanding for potential buyers.

Slept Cool, Comfy, and Consistent from Day One

From the very first night, this mattress delivered an unbelievably comfortable and supportive rest. I woke up each morning feeling refreshed and restored, ready to take on the day.

The comfort and temperature regulation remained consistent over two months of testing. This is the perfect bed for people who want the benefits of coils with the comfort of memory foam. As a hybrid, it offers up a well-rounded mattress that will certainly please the vast majority of sleepers.

I wholeheartedly believe the Amerisleep AS3 Hybrid can transform one’s sleep for the better. It is a well-balanced, overachiever that gives you a consistently comfortable experience. It handles multiple bed partners without concern and is designed to navigate multiple sleeping positions and variable sleep conditions. The AS3 Hybrid is an excellent investment.

Combining my analysis with Dr. Burns’ insights, the Amerisleep AS3 Hybrid mattress stands out as a versatile, comfortable, and supportive option suitable for a wide range of sleepers. Dr. Burns concludes with a strong endorsement, “I would rate this mattress a 10 out of 10.” He continues to note that, “Investing in your sleep is investing in your overall health and wellness.”

This exceptional mattress exceeded my expectations in every regard. I recommend it to anyone seeking deep, restful sleep night after night.

Frequently Asked Questions (FAQs)

Is the Amerisleep AS3 Hybrid suitable for all sleeping positions?

Yes, the Amerisleep AS3 Hybrid mattress is designed to accommodate all sleeping positions. Its medium firmness level and responsive support provide comfort and proper spinal alignment for side, back, and stomach sleepers.

The combination of cushioning memory foam and supportive coils makes it a versatile choice for various sleep preferences.

How does the AS3 Hybrid regulate temperature for a cool sleep experience?

The AS3 Hybrid mattress features several cooling technologies to ensure a comfortable sleep temperature. The breathable cover is made with a unique fiber blend that promotes airflow and wicks away heat, while the proprietary Bio-Pur memory foam has an open-cell structure that allows for better air circulation.

Additionally, the pocketed coil layer enhances airflow throughout the mattress, further preventing heat retention.

Will the Amerisleep AS3 Hybrid work well for couples?

The Amerisleep AS3 Hybrid mattress is an excellent choice for couples, thanks to its exceptional motion isolation properties. The individually wrapped coils and the memory foam layers work together to absorb movement, preventing disturbances when one partner shifts positions or gets in and out of bed. This ensures that both sleepers can enjoy uninterrupted rest throughout the night.

How long does the Amerisleep AS3 Hybrid last?

The Amerisleep AS3 Hybrid mattress is built with high-quality, durable materials designed to withstand years of use. The advanced memory foam layers and sturdy pocketed coils provide long-lasting support and comfort. With proper care and rotation, this mattress can easily last 8-10 years or more, making it a worthwhile investment in your sleep health.

Is the Amerisleep AS3 Hybrid compatible with adjustable bed bases?

Yes, the Amerisleep AS3 Hybrid mattress is designed to work with adjustable bed bases. Its flexible construction allows it to bend and conform to the base’s contours without compromising its support or comfort.

This compatibility makes it an ideal choice for sleepers who enjoy the customizable positioning and pressure relief provided by adjustable beds.

What sleep trial and warranty does Amerisleep offer with the AS3 Hybrid?

Amerisleep offers a generous 100-night sleep trial with the AS3 Hybrid mattress, allowing customers to test the mattress in the comfort of their own home. If you are not satisfied with the mattress during this period, you can return it for a full refund.

Additionally, the AS3 Hybrid mattress comes with a 20-year warranty, protecting against defects in materials and workmanship, giving you peace of mind and ensuring long-term value.