Muse Original vs Amerisleep AS4

Muse has a medium firmness feel that is suitable for all sleep positions, minimizes motion transfer and provides superior support at the edges.

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.

A luxurious memory foam mattress crafted with advanced cooling technology. 4 layers of construction:

• 2" Open Cell Foam
• 2" Liquid Gel Memory Foam
• 2" Responsive Comfort Foam - Memory Foam
• 6" Foundation Foam.

Three layer construction:

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

Four layers of premium gel-infused, memory foam are wrapped in a removable, washable cover to create a 12" mattress that offers unparalleled comfort, pressure relief and temperature regulation.

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.

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.

Open cell foam in the comfoty layer has a plush and luxurious feel; its wide-open structure works with adaptive airflow for exceptional cooling-comfort.
A liquid gel infusion is used in the high density foams to help resist heat transfer while providing conforming comfort.

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.

The transition foam actively responds to input minimizing felt motion transfer and provide deep felt support to your body.
The 6 inch base layer creates a dense, durable foundation that caters to all sleep positions and body types, prevents that dreaded "quicksand" feeling, and offers excellent edge support.

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.

The Muse cover is knitted with phase-changing yarn that actively absorbs and distributes the ambient temperature in the room. It feels cool to the touch and helps you keep your cool at night. The cover zips off the mattress for easy removal and cleaning.

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.

Free shipping via UPS Standard within the continental United States. Times vary depending on your location, it generally takes 5 to 7 business days to arrive at your door.

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.