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GhostBed Flex vs Sleep Number 360 c2 Smart Bed

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

GhostBed
Flex

Pricing unavailable — visit GhostBed for current rates

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Sleep Number
360 c2 Smart Bed

Last verified 50 days ago — check current pricing at Sleep Number

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Feature
GhostBed
Flex
Sleep Number
360 c2 Smart Bed
Overview
Type
HybridSmart Bed
Firmness
1 = softest, 10 = firmest
5.5 / 105 / 10
Queen Price
Current / sale price
Check retailerCheck retailer
Trial Period
Return window
101 nights100 nights
Warranty
25 years15 years
Performance Ratings
Cooling
Hot sleepers
GoodLow
Motion Isolation
Partners, light sleepers
GoodFair
Pressure Relief
Hip/shoulder pain
GoodFair
Edge Support
Sit/sleep near edge
GoodFair
Durability
Long-term performance
GoodGood
Compatibility & Features
Adjustable Base
Head/foot elevation
✓ Yes✗ No
Split King Support
Two Twin XL per couple
✓ Yes
Dual Comfort Zones
Different firmness per side
✓ Yes
Smart Features
App, sensors, auto-adjust
SleepIQ biometric tracking (heart rate, breathing, movement), adjustable firmness 0-100 scale per side, Responsive Air auto-adjustment, Sleep Number app (iOS/Android)
Financing
AvailableAffirm
Materials & Safety
Certifications
Organic / non-toxic
None listedNone listed
Off-Gassing
New-foam smell concern
Best For
Ideal sleeper profiles
  • Split King setup
  • Adjustable base users
  • Trial-period conscious shoppers
  • Partners with different preferences
  • Trial-period conscious shoppers
Actions
Our Pick

Need Help Deciding?

For most sleepers, we recommend the GhostBed Flex over the Sleep Number 360 c2 Smart Bed. It scores higher in cooling, motion isolation, pressure relief and delivers stronger overall value. The Sleep Number 360 c2 Smart Bed is the better choice only if budget is paramount — it saves roughly $340.

Still deciding? Take our 2-minute mattress quiz →

GhostBed Flex vs Sleep Number 360 c2 Smart Bed: What Actually Differs

The GhostBed Flex is a hybrid build, while the Sleep Number 360 c2 Smart Bed is a smart bed — that single difference drives most of the cooling, motion, and feel decisions below. The GhostBed Flex stands 13" tall versus 8" for the Sleep Number 360 c2 Smart Bed — a 5.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 5.5/10 on the firmness scale — a medium feel — so neither one is the answer if you need a dramatically different support level. The single largest performance gap is in motion isolation: the GhostBed Flex rates noticeably higher than the Sleep Number 360 c2 Smart Bed, which is the deciding factor if that dimension is high on your list. On a Queen, the Sleep Number 360 c2 Smart Bed runs $909 versus $1,249 for the GhostBed Flex — roughly $340 (27%) less, which is enough to factor into the decision unless the pricier model wins clearly on the specs you care about.

Which Is Better For Your Sleep Style?

Side sleepers
GhostBed Flex

Higher pressure-relief rating, which is what protects hip and shoulder contact points in the side position.

Back sleepers
GhostBed Flex

Firmness of 5.5/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 5/10).

Stomach sleepers
GhostBed Flex

Firmer at 5.5/10 vs 5/10 — stomach sleepers need the extra support to keep the pelvis from sinking and arching the lower back.

Hot sleepers
Spec not available

Cooling rating not available for one or both mattresses — spec not available.

Heavier sleepers (230+ lb)
GhostBed Flex

stronger perimeter / edge support — the two specs heavier sleepers should weight most.

Lighter sleepers (under 150 lb)
Sleep Number 360 c2 Smart Bed

Softer at 5/10 vs 5.5/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.

Couples / light sleepers
GhostBed Flex

Higher motion-isolation rating, which means less disturbance when a partner moves or gets out of bed.

Price Comparison (Queen)

MattressMSRPCurrentSale?
Sleep Number 360 c2 Smart Bed$1,299$909Save $390
GhostBed Flex$1,665$1,249Save $416

The Sleep Number 360 c2 Smart Bed is the budget choice at $909$340 less than the GhostBed Flex ($1,249). That's a 27% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Both are currently below MSRP.

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

Sleep Number 360 c2 Smart Bed

Strengths

  • Adjustable firmness 0-100 (per side)
  • SleepIQ sleep tracking included
  • Dual-zone customization for couples
  • 15-year warranty

Considerations

  • No active cooling
  • Thinnest at 8-inch (limited comfort layers)
  • Requires ongoing app usage for full benefit

Who Should Buy Which?

Choose the GhostBed Flex if you…

  • Hot sleepers
  • Couples / light sleepers
  • Side sleepers / pressure relief
  • Sitting near the edge
Check GhostBed Price ↗

Choose the Sleep Number 360 c2 Smart Bed if you…

  • Budget-conscious shoppers
  • Couples with different firmness preferences
Check Sleep Number Price ↗

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