Amerisleep AS4 vs Bear Original

The AS4 is our medium-soft mattress. It offers plush comfort with targeted support that helps you sleep your best. Plus it stays cool all night, making it our most popular model with side sleepers.

While we designed the Bear Mattress to have a solid core support with a nice touch of softness on top for comfort, we would categorize the mattress as a medium-firm. Certain independent reviews for comparison on mattress firmness rate the Bear Mattress a 7.1 on a scale of 1 to 10, with 10 being most firm.

Three layer construction:

• Bio-Pur® foam
• HIVE® transition layer
• Bio-Core® foam support layer
• Refresh Cooling Cover.

Proprietary memory foam technology & mattress design combines 3 layers of foam:

• Cooling Gel Memory Foam
• Bear Dynamic Foam
• High-Density Support Foam.

Traditional memory foam is made from dense material, so it traps your body heat and can make you sweaty and uncomfortable while you're in bed - and who can sleep like that?
We developed our foam with an enhanced "open cell structure", which means there is more air space between the foam particles. That space wicks away heat while you sleep, and can keep you cooler and more comfortable.

Cooler Sleep
Graphite-Gel + high airflow, open cell Response Foam increase cooling and conductivity up to 7x more than traditional foam mattresses.

Our Bio-Core® foam support layer won't sag even after decades of use. And, like our Bio-Pur® foam, it's partially made from plants instead of petroleum so it's eco-friendly.
The HIVE® layer features hundreds of foam hexagons grouped into five comfort zones. Each zone is designed to provide extra cushion where you want it and support where you need it. That way your body gets the support it needs to stay properly aligned, so you can sleep your best.

Not too firm, not too soft, the Bear Mattress is a perfect blend of cooling comfort, contouring pressure relief and core support designed for all body shapes and all types of sleepers.

The HIVE® transition layer has precision-cut channels that carry away even more heat and moisture. It's enough to make you feel like you're weightlessly resting on a cloud.
Amerisleep's Bio-Pur® material features an advanced-open cell design. This makes Bio-Pur® more breathable and responsive than memory foam, which will keep you cool and comfortable all night. Plus we make Bio-Pur® from partially plant-based sources using a zero-emission process. That means it's the most eco-friendly material of its kind.

Graphite Gel Foam
Rapidly adapts to each individual's needed support and comfort while infused graphite gel particles promote a cooler night's sleep.

Bio-Pur® contours to your body to relieve pressure points and bounces back fast, so you won't feel "stuck" during the night.
Our HIVE® transition layer provides targeted support and pressure relief so you can sleep in perfect alignment. It gives your head, back, and legs more support, and your shoulders and hips more cushion.

Offering just the right amount of bounce, Response Foam offers unparalleled pressure relief and pressure mapping for optimal spinal alignment.
Support foam strengthens the comfort layers and adds long-lasting durability.

Refresh Cooling Cover
The Refresh Cover draws heat from your skin for a delightfully cool-to-the-touch feel. On average, your sleeping surface will stay 7 degrees cooler over an eight-hour night of rest compared to a traditional 100% polyester cover. This scientifically engineered fabric uses minerals to help convert your natural body heat into far infrared energy. This type of energy increases blood circulation to help speed up muscle recovery and improve quality of sleep.

Breathable TENCEL™ Cover made with naturally soft, long-lasting and breathable TENCEL™ fibers. Clinically-Proven Celliant® Cover (optional) with Sleep Recover Technology™
This specialized, one-of-a-kind cover absorbs the body's natural heat and reflects far Infrared light back to the skin helping your body recover faster and sleep better.

We provide standard free curbside shipping to anywhere in the contiguous USA. Mattresses ship as quickly as 3-5 working days (excluding major holidays) via FedEx, once shipped, delivery takes approximately 1-5 business days.

Your Bear Sleep Products typically ship from our warehouse within 2-4 business days after your order is completed. Depending on where you're located in the country our Bear Sleep Products will usually arrive at your door in 4-7 business days.