Sleep Number 360 c2 Smart Bed vs Stearns & Foster Estate Firm Tight Top
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Sleep Number 360 c2 Smart Bed | Stearns & Foster Estate Firm Tight Top |
|---|---|---|
| Overview | ||
Type | Smart Bed | Hybrid |
Firmness 1 = softest, 10 = firmest | 5 / 10 | 9 / 10 |
Queen Price Current / sale price | $909 | $2,099 |
Trial Period Return window | 100 nights | 90 nights |
Warranty | 15 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Low | 7/10 |
Motion Isolation Partners, light sleepers | Fair | 7/10 |
Pressure Relief Hip/shoulder pain | Fair | 6/10 |
Edge Support Sit/sleep near edge | Fair | 9/10 |
Durability Long-term performance | Good | 8/10 bounce |
| 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 | — |
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 | Affirm | Synchrony |
| Materials & Safety | ||
Certifications Organic / non-toxic | None listed | CertiPUR-US |
Off-Gassing New-foam smell concern | — | CertiPUR-US certified foam |
| Best For | ||
Ideal sleeper profiles |
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| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Sleep Number 360 c2 Smart Bed over the Stearns & Foster Estate Firm Tight Top. It scores higher in durability, price-to-value and delivers stronger overall value. The Stearns & Foster Estate Firm Tight Top is the better choice only if you specifically prefer a firmer, more supportive feel.
Sleep Number 360 c2 Smart Bed vs Stearns & Foster Estate Firm Tight Top: What Actually Differs
The Sleep Number 360 c2 Smart Bed is a smart bed build, while the Stearns & Foster Estate Firm Tight Top is a hybrid — that single difference drives most of the cooling, motion, and feel decisions below. The Stearns & Foster Estate Firm Tight Top stands 14.5" tall versus 8" for the Sleep Number 360 c2 Smart Bed — a 6.5" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. The Stearns & Foster Estate Firm Tight Top is the firmer of the two at 9/10 (firm), and the Sleep Number 360 c2 Smart Bed sits at 5/10 (medium) — a meaningful enough gap that sleeper position and weight should drive the choice. On a Queen, the Sleep Number 360 c2 Smart Bed runs $909 versus $2,099 for the Stearns & Foster Estate Firm Tight Top — roughly $1,190 (57%) 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?
Pressure-relief data not available for one or both mattresses — spec not available.
Firmness of 5/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 9/10).
Firmer at 9/10 vs 5/10 — stomach sleepers need the extra support to keep the pelvis from sinking and arching the lower back.
Cooling rating not available for one or both mattresses — spec not available.
Durability and edge-support ratings not available — spec not available.
Softer at 5/10 vs 9/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.
Motion-isolation data not available for one or both mattresses — spec not available.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Sleep Number 360 c2 Smart Bed | $1,299 | $909 | Save $390 |
| Stearns & Foster Estate Firm Tight Top | $2,399 | $2,099 | Save $300 |
The Sleep Number 360 c2 Smart Bed is the budget choice at $909 — $1,190 less than the Stearns & Foster Estate Firm Tight Top ($2,099). That's a 57% 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 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
Stearns & Foster Estate Firm Tight Top
Strengths
- ✓Firmest active Estate feel for stomach and back support
- ✓PrecisionEdge reinforces the usable sleep surface
- ✓Lower price than Lux Estate and Reserve rows
- ✓Free in-home delivery is published on the manufacturer PDP
Considerations
- —Standard Twin is not sold on the checked manufacturer API
- —Firm tight-top feel has less cushioning than pillow-top Estate variants
- —TEMPUR-Indulge is excluded only from Estate Medium, so exact foam stack varies within the Estate family
Who Should Buy Which?
Choose the Sleep Number 360 c2 Smart Bed if you…
- →Budget-conscious shoppers
- →Trial-period sensitive buyers
- →Couples with different firmness preferences
- →Softer feel seekers
Choose the Stearns & Foster Estate Firm Tight Top if you…
- →Organic / non-toxic priority shoppers
- →Firmer support seekers