Amerisleep AS4 vs Brentwood Home Crystal Cove Flippable

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.

Available in a medium feel, made with natural latex and free of synthetic ingredients. Our latex is made with the Dunlop process.
The other side of the mattress is topped with a plush layer of CertiPUR-US Certified Flow Foam that will conform to your body to provide perfect pressure relief and restorative sleep.

Three layer construction:

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

The Crystal Cove mattress features a unique dual-sided design for a customizable, ultra-luxurious sleeping experience. To change your preference, simply flip the mattress.

• 2" All Natural Latex Layer (4lb density)
• 1" Flow Foam (4lb density 12 ILD)
• 2" Charcoal-infused Memory Foam (4lb density)
• 8" Combi-Zone Coil Unit (Queen coil count: 1130).

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.

Activated charcoal is one of the most effective cooling and purifying minerals. Its many healing properties include trapping toxins and chemicals in the body, allowing them to be flushed out and preventing reabsorption.
Our 100% natural Dunlop latex is breathable, durable, naturally responsive, non-toxic, anti-microbial and eco-INSTITUT® certified. Rest easy knowing this premium, natural material is eco-friendly and healthy.

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.

5 strategic zones
Precision crafted, pocketed coils - made in the US from recycled, single-tempered steel - effortlessly distribute your body's weight and relieve aching pressure points. Made of up to 1,414 individually pocketed coils, they also provide critical zoned support for your hips and shoulders, while structurally reinforcing the perimeter to eliminate that "roll-off-the-edge" feeling.

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.

Just below the Flow Foam lies our innovative, naturally cooling, and plush Charcoal-infused Memory Foam. This Certi-PUR-US® certified memory foam is made without ozone depleters, PBDE flame retardants, mercury, lead, heavy metals, formaldehyde or phthalates.

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.

A layer of individually wrapped coils allows precise body contouring for optimal support. Reinforced coils in the lumbar region give your lower back the support it needs, and edge retention coils allow you to sit or sleep at the edges without rolling off. We choose isolated springs to reduce noise, motion transfer, and partner disturbance.

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.

Artfully-designed, Functional Cover
Removable and washable stitched gray cover with a beautiful, modern design.

Certified Vegan by Vegan Action

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.

We make everything to order when you purchase from Brentwood Home. The handcrafting process usually takes 3 to 5 days to complete, and delivery times vary depending on your distance from our Los Angeles workshops. Expect to receive your mattress within 5 to 10 business days after placing your order.