Amerisleep AS3 vs Nest Bedding Raven Flippable Foam Hybrid

The AS3 is our most versatile mattress. It evenly blends support and softness, so it's great for people who change positions as they sleep and couples with different sleep styles. It's also our most popular mattress overall.

This luxury hybrid foam and coil mattress comes with a medium feel on the top and a feel firm on the bottom, allowing sleepers to try both sides for optimal comfort. With our two-in-one comfort design, this mattress is ideal for side, back, and stomach sleepers. The medium side is about a 5 on the firmness scale and the firm side is about an 8.

The AS3 is Amerisleep best-selling mattress. It's tailored to adapt to most body types and sleep styles. Its perfect “medium” feel uses an even mix of comfort and support to relieve pain-causing pressure points and support healthy sleeping positions. Three layer construction:

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

The Raven is an affordable premium memory foam flippable hybrid mattress with two firmness levels in one bed and a breathable quilted top. It is constructed with the following layers: * 1" Quilting Foam Cover * 1" Cooling Visco Gel Support Foam * 6" Reinforced Edge Coil Support Pocketed Coils * 1" High Density Foam * 1" Quilting Foam Cover.

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.

Two breathable and ergonomically supportive sleep surfaces in a medium and firm feel designed for side, stomach and back sleepers. Sleeps comfortable and cool, with built in airflow and cool sleeping fabric.

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.

Nest Bedding combined cooling Visco Gel support foam with a durable coil system, granting two sided firmness in a flippable hybrid luxury mattress.

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 medium side has memory foam infused with cooling gel in the comfort layer. The cooling gel infusion is designed to reduce overheating. The built-in airflow will allow you to sleep cool and comfortable all night long.

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 synthetic polymer visco memory foam that forms to the shape of your body and reshapes to its former structure as pressure is removed. This support foam structure provides excellent pressure point relief.
Individually wrapped coil system offers reinforced edge support.
High-density foam offers additional structure and support to the firm side.

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.

A quilted foam cover on both the top and bottom of the mattress means you'll sleep cool and comfortable no matter which side you choose! A soft but resilient polyfoam is used to give a plush and soft pillow top feel that won't flatten or compress over time.

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 new mattress can take up to 2-4 business days to make as they are made to order by hand in the USA. Then, we ship from the West Coast, so depending on where you live, it can take 1-5 business days in transit.