Amerisleep AS1 vs Helix Dawn

The AS1 is our firmest mattress, it offers gentle-but-firm support that stays cool all night. It's a great choice for back and stomach sleepers who like extra support.

Firm feel top of the bed you need - no sink or give. Comfortable, yet solid under your body. Extra support - best for back and stomach sleepers, or side sleepers with larger body types. A 8-9 on the firmness scale.

Two layer construction:

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

The Dawn offers extra support and a firm feel, it has four layers of construction:

• Cover: Helix Two Touch Design
• Comfort Layer: Helix Dynamic Foam (Density: 2.45 PCF)
• Transition Layer: High-Grade Polyfoam
• Body Shape Layer: 6" Wrapped Coils
• Base Layer: DuraDense Foam.

Our foam is also better than traditional memory foam because it recovers its shape faster. With a typical foam mattress, you often wind up "stuck" when you change positions but the mattress is still holding your previous shape. That's because it takes around 60 seconds for the foam to bounce back.
Ours bounces back in just four seconds, so as you move at night your mattress keeps up with you, providing superior comfort.

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.

Specially designed using proprietary Helix Dynamic Foam to react to your body shape and aid recovery.
Density of the top and middle layers optimized to give you extra support based on your body type.

Our Bio-Pur® foam is five times more breathable than traditional memory foam, because of its advanced open-cell structure. It wicks away heat while you sleep and can help keep you cool and comfortable.

Our special latex-foam hybrid alternative, designed to react and contour to your body.

Bio-Pur® breathes and conforms to your body. When you lie down, you'll feel Bio-Pur® relieve your pressure points.

High-Grade Polyfoam
Providing ergonomic support and cushioning, the transition layer has a higher IFD to match your body type. Extra support.
Wrapped Coils
Hundreds of individual coils help to cradle your body while also limiting motion transfer.
Edge Support
Each mattress has an individually wrapped spring unit with a reinforced perimeter. This means your mattress will reduce that roll-off feeling and will keep its shape more while sitting on the edge of the bed. Our technology is proven to be substantially better than all foam options.

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.

Helix Two Touch Design
Each mattress comes with a top cover layer with stretch and a soft touch as well as a lower cover layer for airflow and breathability. Top cover - 100% soft polyester. Lower cover - Jersey knit fabric with woven fire barrier.
Upgrade to ultra cool knit cover for cooler nights (available at checkout). This Ultra-Cool Cover is designed using phase change material to keep your body cool when you sleep. Simply zip on the Ultra-Cool Cover in place of your standard cover for quick and easy use.

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 Helix Mattress is gently compressed, rolled, and put in a box that's about the size of a bag of golf clubs for easy shipping! Packaging dimensions are 16" x 16" x 48", and we ship via UPS Ground direct from the manufacture to your door.