Casper The One vs Serta iComfort Aveda 12"
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
Pricing unavailable — visit Serta for current rates
Check current price at Serta →| Feature | Casper The One | Serta iComfort Aveda 12" |
|---|---|---|
| Overview | ||
Type | Memory Foam | Memory Foam |
Firmness 1 = softest, 10 = firmest | 6 / 10 | 5.5 / 10 |
Queen Price Current / sale price | $799 | Check retailer |
Trial Period Return window | 100 nights | 120 nights |
Warranty | 10 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Low | Moderate |
Motion Isolation Partners, light sleepers | Excellent | Excellent |
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 | ✓ 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 | Affirm | Synchrony |
| Materials & Safety | ||
Certifications Organic / non-toxic | CertiPUR-US | CertiPUR-US |
Off-Gassing New-foam smell concern | CertiPUR-US certified foam | CertiPUR-US certified foam |
| Best For | ||
Ideal sleeper profiles |
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| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Serta iComfort Aveda 12" over the Casper The One. It scores higher in cooling and delivers stronger overall value. The Casper The One is the better choice only if budget is paramount — it saves roughly $700.
Casper The One vs Serta iComfort Aveda 12": What Actually Differs
Both the Casper The One and Serta iComfort Aveda 12" are memory foam mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Serta iComfort Aveda 12" stands 12" tall versus 11" for the Casper The One — a 1.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 6/10 on the firmness scale — a medium-firm feel — so neither one is the answer if you need a dramatically different support level. On a Queen, the Casper The One runs $799 versus $1,499 for the Serta iComfort Aveda 12" — roughly $700 (47%) 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: Serta iComfort Aveda 12" at 5.5/10).
Firmness of 6/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 5.5/10).
Firmer at 6/10 vs 5.5/10 — 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 are equivalent — either holds up.
Softer at 5.5/10 vs 6/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.
Motion isolation rated the same on both — neither has a transfer-disturbance edge.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Casper The One | $999 | $799 | Save $200 |
| Serta iComfort Aveda 12" | $1,499 | $1,499 | At MSRP |
The Casper The One is the budget choice at $799 — $700 less than the Serta iComfort Aveda 12" ($1,499). That's a 47% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Only the Casper The One is on sale right now.
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)
Serta iComfort Aveda 12"
Strengths
- ✓120-night trial (longer than most)
- ✓10-year full non-prorated warranty
- ✓Graphite-infused memory foam
- ✓CoolFeel Pro cover
Considerations
- —Return fee applies (15% restocking + $200 shipping)
- —Fair edge support
- —Serta MAP pricing — same at all authorized retailers
Who Should Buy Which?
Choose the Serta iComfort Aveda 12" if you…
- →Hot sleepers
- →Trial-period sensitive buyers