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Beautyrest Harmony Lux Carbon Medium Pillow Top vs GhostBed Flex

Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.

Beautyrest
Harmony Lux Carbon Medium Pillow Top
$1,149
$1,399 MSRP
Queen
Check Price & Today's Deal →
📧 Get notified if this price drops
GhostBed
Flex
$1,249
$1,665 MSRP
Queen
Check Price & Today's Deal →
📧 Get notified if this price drops
Feature
Beautyrest
Harmony Lux Carbon Medium Pillow Top
GhostBed
Flex
Overview
Type
HybridHybrid
Firmness
1 = softest, 10 = firmest
5.5 / 105.5 / 10
Queen Price
Current / sale price
$1,149$1,249
Trial Period
Return window
100 nights101 nights
Warranty
10 years25 years
Performance Ratings
Cooling
Hot sleepers
HighGood
Motion Isolation
Partners, light sleepers
ExcellentGood
Pressure Relief
Hip/shoulder pain
GoodGood
Edge Support
Sit/sleep near edge
GoodGood
Durability
Long-term performance
GoodGood
Compatibility & Features
Adjustable Base
Head/foot elevation
✓ Yes✓ Yes
Split King Support
Two Twin XL per couple
✓ Yes
Dual Comfort Zones
Different firmness per side
Smart Features
App, sensors, auto-adjust
Financing
Synchrony, AffirmAvailable
Materials & Safety
Certifications
Organic / non-toxic
CertiPUR-US, SEAQUALNone listed
Off-Gassing
New-foam smell concern
CertiPUR-US certified foam
Best For
Ideal sleeper profiles
  • Couples / light sleepers
  • Adjustable base users
  • Organic / non-toxic priority
  • Trial-period conscious shoppers
  • Split King setup
  • Adjustable base users
  • Trial-period conscious shoppers
Actions
Buy Beautyrest Harmony Lux Carbon Medium Pillow TopBuy GhostBed Flex
Still deciding? Take our 2-minute mattress quiz →

Beautyrest Harmony Lux Carbon Medium Pillow Top

Strengths

  • InfiniCool Lux cooling technology
  • T2 pocketed coils for airflow
  • SEAQUAL ocean-plastic fabric cover
  • 100-night trial

Considerations

  • DISCONTINUED Aug 19, 2025 — clearance only
  • Replaced by Beautyrest Black/Pressure Smart lines
  • Limited inventory — verify availability before publishing links

GhostBed Flex

Strengths

  • Ghost Ice fabric cover for active cooling
  • 25-year warranty (best in hybrid category)
  • Strong edge support from wrapped coil system

Considerations

  • Heavier and harder to move than foam models
  • Ghost Ice fabric feel is polarizing — very silky/slippery

Who Should Buy Which?

Choose the Beautyrest Harmony Lux Carbon Medium Pillow Top if you…

  • Couples / light sleepers
  • Organic / non-toxic priority shoppers
Check Beautyrest Price ↗

Choose the GhostBed Flex if you…

  • Hot sleepers
  • Trial-period sensitive buyers
Check GhostBed Price ↗

Beautyrest Harmony Lux Carbon Medium Pillow Top

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