A firm comfort profile keeps the surface steady while the cooling gel memory foam adds enough contour for everyday pressure relief.
ADAPTIV Horizon - Firm
Firm cooling support
A firm, cool, supportive feel for shoppers who want a cleaner recovery sleep surface.
Feel: Firm · Height: 11 in
ADAPTIV Horizon - Firm is the focused entry point into the ADAPTIV Sleep mattress lineup, built with AeroSync Climate Management, cooling gel memory foam, precision coils, and a firm support profile.
Inside Horizon Firm
Five layers. A focused firm feel.
Cooling starts with the ELEVAIRE Cover featuring AeroSync Climate Management and AeroTherm Cooling Gel Memory Foam, then moves through ComfortBridge Support Foam into the MATRIX BASE Precision Coil Array.
Exact construction · top to base
- ELEVAIRE Cover featuring AeroSync Climate Management
- AeroTherm Cooling Gel Memory Foam
- ComfortBridge Support Foam
- MATRIX BASE Precision Coil Array
- SupportCore Base Foam
Performance details
Mattress performance details.
Review construction, feel, cooling, support, pressure relief, and height before choosing your mattress.
A firm, cool, supportive feel for shoppers who want a cleaner recovery sleep surface.
ELEVAIRE Cover featuring AeroSync Climate Management AeroTherm Cooling Gel Memory Foam ComfortBridge Support Foam MATRIX BASE Precision Coil Array SupportCore Base Foam
- Feel
- Firm
- Height
- 11 in
- Best for
- Back sleepers, stomach sleepers, firm feel shoppers, value-focused mattress buyers
- Body fit
- Average, Athletic, Higher support preference
AeroSync Climate Management and AeroTherm cooling gel memory foam support a cooler sleep surface.
ComfortBridge support foam and the MATRIX BASE Precision Coil Array create the core support feel.
Best for shoppers who want pressure relief without sinking deeply into the mattress.
Foam comfort layers and individually responsive coils help reduce motion transfer.
The coil support system helps preserve usable sleep surface near the edge.
Compare models
Every ADAPTIV Sleep feel, side by side.
Compare feel, cooling and support across four online mattresses and the retailer-exclusive Summit Ultra Plush.
| Feature matrix Included technology by model | Firm Horizon 11 in · Firm From $2,699.00 | Most versatile Ascent 13 in · Medium From $3,299.00 | Luxury plush comfort Ascent 13 in · Luxury Plush From $3,299.00 | Flagship Summit 15 in · Luxury Firm From $4,199.00 | Retail exclusive Summit 15 in · Ultra Plush Authorized retailers |
|---|---|---|---|---|---|
| 01 Core comfort platform | |||||
| ELEVAIRE Cover featuring AeroSync Climate Management Specified across every mattress | ✓ | ✓ | ✓ | ✓ | ✓ |
| AeroTherm cooling foam Model-specific Memory, Plush, or Elite formulation | ✓ | ✓ | ✓ | ✓ | ✓ |
| Zoned QuickCool PCM Phase-change material in Ascent and Summit | — | ✓ | ✓ | ✓ | ✓ |
| 02 Zoned response and support | |||||
| AirFlow+ 5-Zone Response Foam ADAPTIX or ENERGIX formulation by model | — | ✓ | ✓ | ✓ | ✓ |
| ADAPTIC ExtendiCool Climate Bands Extended climate management in Summit | — | — | — | ✓ | ✓ |
| NanoFlex Zoned Microcoil Layer Zoned or Zoned Plush microcoil response | — | — | — | ✓ | ✓ |
| ComfortBridge foam Support, Transition, or Plush Support formulation | ✓ | ✓ | ✓ | ✓ | ✓ |
| 03 Hybrid foundation | |||||
| MATRIX BASE Precision Coil Array Model-specific edge and plush configuration | ✓ | ✓ | ✓ | ✓ | ✓ |
| SupportCore Base Foam Specified across every mattress | ✓ | ✓ | ✓ | ✓ | ✓ |
Feature names follow the current build specifications. Exact plush, edge, and response formulations are listed below for each mattress.
Choose any two mattresses.
Switch either model to see exactly what changes.
01Climate comfort platform
02Zoned response and support
03Hybrid foundation
View exact construction for all five mattresses
ADAPTIV Horizon - Firm
ELEVAIRE Cover featuring AeroSync Climate Management AeroTherm Cooling Gel Memory Foam ComfortBridge Support Foam MATRIX BASE Precision Coil Array SupportCore Base Foam
ADAPTIV Ascent - Medium
ELEVAIRE Cover featuring AeroSync Climate Management AeroSync Recovery Foam with Zoned QuickCool PCM ADAPTIX AirFlow+ 5-Zone Response Foam AeroTherm Cooling Gel Foam featuring 2X ATLAS Support Edge ComfortBridge Transition Foam MATRIX BASE Precision Coil Array with ATLAS Support Edge SupportCore Base Foam
ADAPTIV Ascent - Luxury Plush
ELEVAIRE Cover featuring AeroSync Climate Management AeroSync Recovery Foam with Zoned QuickCool PCM ADAPTIX AirFlow+ 5-Zone Plush Response Foam AeroTherm Plush Cooling Gel Foam featuring 2X ATLAS Support Edge ComfortBridge Transition Foam MATRIX BASE Precision Coil Array (Plush) with ATLAS Support Edge SupportCore Base Foam
ADAPTIV Summit - Luxury Firm
ELEVAIRE Cover featuring AeroSync Climate Management AeroTherm Elite Cooling Gel Foam with Zoned QuickCool PCM ADAPTIC ExtendiCool Climate Bands ENERGIX AirFlow+ 5-Zone Response Foam NanoFlex Zoned Microcoil Layer ComfortBridge Support Foam MATRIX BASE Precision Coil Array with 2X ATLAS Support Edge SupportCore Base Foam
ADAPTIV Summit - Ultra Plush
ELEVAIRE Cover featuring AeroSync Climate Management AeroTherm Elite Cooling Gel Foam with Zoned QuickCool PCM ADAPTIC ExtendiCool Climate Bands ADAPTIX AirFlow+ 5-Zone Plush Response Foam NanoFlex Zoned Plush Microcoil Layer ComfortBridge Plush Support Foam MATRIX BASE Precision Coil Array (Plush) with 2X ATLAS Support Edge SupportCore Base Foam
Size guide
Choose the size that gives your body room to recover.
Use standard mattress dimensions and room-fit guidance before selecting your size.
Twin
Kids rooms, compact guest rooms, and smaller spaces.
Twin XL
Taller solo sleepers, dorm-style rooms, and adjustable-base splits.
Full
Solo sleepers who want more width without taking over the room.
Queen
The most versatile fit for couples and primary bedrooms.
King
Couples, active sleepers, and anyone who wants more recovery room.
California King
Taller sleepers and rooms that fit extra length better than extra width.
Sleep position guide
Pressure relief and support start with how you sleep.
Connect your sleep position with the feel, pressure relief and support choices available on this page.
Product questions
Product questions.
Answers focused on materials, feel, sizing, and choosing the right ADAPTIV Sleep model.
What materials and layers matter most? +
Look for the construction, feel, cooling, and support details above to understand how this mattress fits your recovery routine.
Which sizes are available? +
Available mattress sizes include Twin, Twin XL, Full, Queen, King, and California King.
Try it locally
Want to feel ADAPTIV Sleep before buying direct?
Buying direct should be easy, but a mattress is personal. Check local availability when you want to experience ADAPTIV Sleep first or explore Summit Ultra Plush.
Compare another feel