Skip to main content
Affiliate Disclosure: SleepRanked earns commissions when you purchase through links on this page, at no extra cost to you. This does not influence our rankings or recommendations. Learn more

Casper The One vs Helix Sunset

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

Casper
The One
$799
$999 MSRP
Queen
Check Price & Today's Deal →
📧 Get notified if this price drops
Helix
Sunset
$1,099
$1,374 MSRP
Queen
Check Price & Today's Deal →
📧 Get notified if this price drops
Feature
Casper
The One
Helix
Sunset
Overview
Type
Memory FoamHybrid
Firmness
1 = softest, 10 = firmest
6 / 102.5 / 10
Queen Price
Current / sale price
$799$1,099
Trial Period
Return window
100 nights100 nights
Warranty
10 yearsLifetime
Performance Ratings
Cooling
Hot sleepers
LowLow
Motion Isolation
Partners, light sleepers
ExcellentExcellent
Pressure Relief
Hip/shoulder pain
GoodExcellent
Edge Support
Sit/sleep near edge
FairFair
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
AffirmAffirm
Materials & Safety
Certifications
Organic / non-toxic
CertiPUR-USCertiPUR-US
Off-Gassing
New-foam smell concern
CertiPUR-US certified foamCertiPUR-US certified foam
Best For
Ideal sleeper profiles
  • Couples / light sleepers
  • Split King setup
  • Adjustable base users
  • Organic / non-toxic priority
  • Side sleepers
  • Couples / light sleepers
  • Adjustable base users
  • Soft / plush preference
Actions
Buy Casper The OneBuy Helix Sunset
Still deciding? Take our 2-minute mattress quiz →

Casper The One

Strengths

  • Zoned Support (shoulder/hip differentiation)
  • Solid motion isolation
  • Open-cell foam for breathability
  • 100-night trial

Considerations

  • No active cooling
  • Fair edge support
  • All-foam (no coil bounce)

Helix Sunset

Strengths

  • Softest model in standard Helix line
  • Excellent pressure relief for lightweight sleepers
  • 120-night trial
  • Lifetime warranty

Considerations

  • Not for heavier sleepers (250+ lbs)
  • Limited edge support
  • Poor for stomach sleepers

Who Should Buy Which?

Choose the Casper The One if you…

  • Budget-conscious shoppers
  • Firmer support seekers
Check Casper Price ↗

Choose the Helix Sunset if you…

  • Side sleepers / pressure relief
  • Softer feel seekers
Check Helix Price ↗

Compare with Another Mattress

Want to add a third option? Visit the Browse page and select up to 4 mattresses to compare.