Side-by-side mattress testing · 144+ comparisons published
Updated May 2026
Category
Symphony Sleep ES600
Ergomotion Quest 4.0
Build Quality
9.4/10
9/10
Features
9.5/10
9.2/10
Quietness
9.2/10
9/10
Ease of Use
9.3/10
9.3/10
Durability
9.4/10
9/10
Value
9.1/10
8.8/10
Quick Specs Comparison
Spec
Symphony Sleep ES600
Ergomotion Quest 4.0
Price (Queen)
$1,249
$1,099
Weight Capacity
750 lbs
750 lbs
Motor Type
Dual Okin
Dual Okin
Massage
3 intensities + wave mode
No
App Control
No (wireless remote)
Yes (Bluetooth)
Under-Bed Lighting
Yes
Yes (motion-activated)
Wall-Hugger
Yes
Yes
Trial
120 nights
90 nights
Warranty (Frame)
20 years
15 years
Key Advantages
Why Choose Symphony Sleep ES600
- Built-in massage with 3 intensities and wave mode
- 20-year frame warranty vs 15 years
- 120-night trial vs 90 nights
- USB charging on both sides
Why Choose Ergomotion Quest 4.0
- $150 cheaper at Queen size
- Bluetooth app control with sleep tracking
- Independent lumbar adjustment zone
- Programmable memory positions via app