Casper The One vs Serta Perfect Sleeper Cascade Canyon Medium 13"
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Casper The One | Serta Perfect Sleeper Cascade Canyon Medium 13" |
|---|---|---|
| Overview | ||
Type | Memory Foam | Innerspring |
Firmness 1 = softest, 10 = firmest | 6.5 / 10 | 6 / 10 |
Queen Price Current / sale price | $799 | $799 |
Trial Period Return window | 100 nights | 100 nights |
Warranty | 10 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Moderate | Good |
Motion Isolation Partners, light sleepers | Excellent | Good |
Pressure Relief Hip/shoulder pain | Good | Good |
Edge Support Sit/sleep near edge | Fair | Good |
Durability Long-term performance | Good | Good |
| Compatibility & Features | ||
Adjustable Base Head/foot elevation | ✓ Yes | ✓ Yes |
Split King Support Two Twin XL per couple | ✓ Yes | ✓ Yes |
Dual Comfort Zones Different firmness per side | — | — |
Smart Features App, sensors, auto-adjust | — | — |
Financing | Affirm | Affirm |
| Materials & Safety | ||
Certifications Organic / non-toxic | CertiPUR-US | CertiPUR-US |
Off-Gassing New-foam smell concern | CertiPUR-US certified foam | Minimal (innerspring) |
| Best For | ||
Ideal sleeper profiles |
|
|
| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Serta Perfect Sleeper Cascade Canyon Medium 13" over the Casper The One. It scores higher in cooling, edge support and offers strong overall value at $799 (vs $799). The Casper The One is the better choice only if you have a strong preference for that brand's specific feel or design.
Casper The One vs Serta Perfect Sleeper Cascade Canyon Medium 13": What Actually Differs
The Casper The One is a memory foam build, while the Serta Perfect Sleeper Cascade Canyon Medium 13" is a innerspring — that single difference drives most of the cooling, motion, and feel decisions below. The Serta Perfect Sleeper Cascade Canyon Medium 13" stands 13" tall versus 11" for the Casper The One — a 2.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. Both sit at roughly 6.5/10 on the firmness scale — a medium-firm feel — so neither one is the answer if you need a dramatically different support level. The single largest performance gap is in cooling: the Serta Perfect Sleeper Cascade Canyon Medium 13" rates noticeably higher than the Casper The One, which is the deciding factor if that dimension is high on your list. Queen pricing lands within $1 of each other ($799 vs $799), so price is essentially neutral — pick on feel and features rather than budget.
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 Perfect Sleeper Cascade Canyon Medium 13" at 6/10).
Firmness of 6/10 is closer to the medium-firm sweet spot back sleepers need for lumbar support (vs 6.5/10).
Firmer at 6.5/10 vs 6/10 — stomach sleepers need the extra support to keep the pelvis from sinking and arching the lower back.
Stronger cooling rating, which matters most for sleepers who run hot or live in warm climates.
stronger perimeter / edge support — the two specs heavier sleepers should weight most.
Softer at 6/10 vs 6.5/10 — lighter sleepers compress less, so they typically need the softer of two options to get proper contouring.
Higher motion-isolation rating, which means less disturbance when a partner moves or gets out of bed.
Price Comparison (Queen)
| Mattress | MSRP | Current | Sale? |
|---|---|---|---|
| Casper The One | $999 | $799 | Save $200 |
| Serta Perfect Sleeper Cascade Canyon Medium 13" | $799 | $799 | At MSRP |
At current pricing the two land within $1of each other, so price isn't the deciding factor — choose on feel, firmness, and the performance gaps called out above. Only the Casper The One is on sale right now.
Casper The One
Strengths
- ✓Three-layer foam build with Casper Core support
- ✓Strong motion isolation for an all-foam bed
- ✓Split King is sold from the PDP
Considerations
- —No coil edge feel
- —No active Snow cooling package
- —Medium-firm feel is less plush than Cloud One
Serta Perfect Sleeper Cascade Canyon Medium 13"
Strengths
- ✓Current Serta.com Perfect Sleeper medium profile with Twin through Cal King availability
- ✓860-density Q4 coil system is designed to distribute weight evenly
- ✓5 Zoned Comfort targets the shoulders, back, and hips
- ✓Free shipping, free returns, and 100-night Serta.com trial are published on the PDP
Considerations
- —Split sizes are not sold on the checked Serta PDP
- —Quilted innerspring construction has a more traditional responsive feel than an all-foam bed
- —White glove delivery timing depends on RXO scheduling after order placement
Who Should Buy Which?
Choose the Serta Perfect Sleeper Cascade Canyon Medium 13" if you…
- →Hot sleepers
- →Sitting near the edge