Sleep Number 360 c4 Smart Bed vs Sleep Number 360 p6 Smart Bed
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Sleep Number 360 c4 Smart Bed | Sleep Number 360 p6 Smart Bed |
|---|---|---|
| Overview | ||
Type | Smart Bed | Smart Bed |
Firmness 1 = softest, 10 = firmest | 5 / 10 | 5 / 10 |
Queen Price Current / sale price | $1,329 | $2,239 |
Trial Period Return window | 100 nights | 100 nights |
Warranty | 15 years | 15 years |
| Performance Ratings | ||
Cooling Hot sleepers | Low | Moderate |
Motion Isolation Partners, light sleepers | Fair | Good |
Pressure Relief Hip/shoulder pain | Good | Good |
Edge Support Sit/sleep near edge | Fair | Fair |
Durability Long-term performance | Good | Good |
| Compatibility & Features | ||
Adjustable Base Head/foot elevation | ✗ No | ✓ Yes |
Split King Support Two Twin XL per couple | ✓ Yes | ✓ Yes |
Dual Comfort Zones Different firmness per side | ✓ Yes | ✓ 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) | SleepIQ biometric tracking (heart rate, breathing, movement), adjustable firmness 0-100 scale per side, Responsive Air auto-adjustment, Sleep Number app (iOS/Android) Temperature-balancing foam layer. Compatible with FlexFit adjustable base. |
Financing | Affirm | Affirm |
| Materials & Safety | ||
Certifications Organic / non-toxic | None listed | None listed |
Off-Gassing New-foam smell concern | — | — |
| Best For | ||
Ideal sleeper profiles |
|
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| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Sleep Number 360 p6 Smart Bed over the Sleep Number 360 c4 Smart Bed. It scores higher in cooling, motion isolation and delivers stronger overall value. The Sleep Number 360 c4 Smart Bed is the better choice only if budget is paramount — it saves roughly $910.
Sleep Number 360 c4 Smart Bed vs Sleep Number 360 p6 Smart Bed: What Actually Differs
Both the Sleep Number 360 c4 Smart Bed and Sleep Number 360 p6 Smart Bed are smart bed mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Sleep Number 360 p6 Smart Bed stands 11" tall versus 9" for the Sleep Number 360 c4 Smart Bed — a 2.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 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 Sleep Number 360 p6 Smart Bed rates noticeably higher than the Sleep Number 360 c4 Smart Bed, which is the deciding factor if that dimension is high on your list. On a Queen, the Sleep Number 360 c4 Smart Bed runs $1,329 versus $2,239 for the Sleep Number 360 p6 Smart Bed — roughly $910 (41%) 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?
Both rate the same for pressure relief — choose on firmness instead (side sleepers usually prefer the softer of the two: Sleep Number 360 p6 Smart Bed at 5/10).
Both fall in the medium-firm zone back sleepers prefer (5/10 vs 5/10) — either works.
Effectively the same firmness (5/10 vs 5/10). Stomach sleepers generally want 7+/10 — neither is ideal if both rate lower.
Cooling rating not available for one or both mattresses — spec not available.
Durability and edge-support ratings are equivalent — either holds up.
Both have similar firmness and pressure-relief profile — either works.
Higher motion-isolation rating, which means less disturbance when a partner moves or gets out of bed.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Sleep Number 360 c4 Smart Bed | $1,899 | $1,329 | Save $570 |
| Sleep Number 360 p6 Smart Bed | $3,199 | $2,239 | Save $960 |
The Sleep Number 360 c4 Smart Bed is the budget choice at $1,329 — $910 less than the Sleep Number 360 p6 Smart Bed ($2,239). That's a 41% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Both are currently below MSRP.
Sleep Number 360 c4 Smart Bed
Strengths
- ✓Thicker 9-inch profile vs c2
- ✓SleepIQ tracking + dual adjustable firmness
- ✓15-year warranty
- ✓100-night trial
Considerations
- —No active cooling
- —Mattress-only (base sold separately)
- —Still basic comfort layers vs p/i series
Sleep Number 360 p6 Smart Bed
Strengths
- ✓Temperature-balancing foam (not active cooling)
- ✓11-inch profile — thicker comfort layers
- ✓Dual adjustable firmness
- ✓FlexFit adjustable base compatible
Considerations
- —Not active cooling — just temp-balancing foam
- —Priced above mainstream alternatives — reflects dual-adjustable smart bed engineering, biometric sensors, and ongoing app infrastructure — pricing reflects a technology platform, not just a mattress
- —Mattress-only
Who Should Buy Which?
Choose the Sleep Number 360 c4 Smart Bed if you…
- →Budget-conscious shoppers
Choose the Sleep Number 360 p6 Smart Bed if you…
- →Hot sleepers
- →Couples / light sleepers