Casper The One vs Helix Midnight
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Casper The One | Helix Midnight |
|---|---|---|
| Overview | ||
Type | Memory Foam | Hybrid |
Firmness 1 = softest, 10 = firmest | 6.5 / 10 | 5.5 / 10 |
Queen Price Current / sale price | $799 | $1,099 |
Trial Period Return window | 100 nights | 100 nights |
Warranty | 10 years | 15 years |
| Performance Ratings | ||
Cooling Hot sleepers | Moderate | Moderate |
Motion Isolation Partners, light sleepers | Excellent | Good |
Pressure Relief Hip/shoulder pain | Good | Excellent |
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 | CertiPUR-US certified foam |
| Best For | ||
Ideal sleeper profiles |
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| Actions | ||
Need Help Deciding?
For most sleepers, we recommend the Helix Midnight over the Casper The One. It scores higher in pressure relief, edge support and delivers stronger overall value. 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 Helix Midnight: What Actually Differs
The Casper The One is a memory foam build, while the Helix Midnight is a hybrid — that single difference drives most of the cooling, motion, and feel decisions below. The Helix Midnight 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. The Casper The One is the firmer of the two at 6.5/10 (medium-firm), and the Helix Midnight sits at 5.5/10 (medium) — a meaningful enough gap that sleeper position and weight should drive the choice. The single largest performance gap is in motion isolation: the Casper The One rates noticeably higher than the Helix Midnight, which is the deciding factor if that dimension is high on your list. On a Queen, the Casper The One runs $799 versus $1,099 for the Helix Midnight — roughly $300 (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?
Higher pressure-relief rating, which is what protects hip and shoulder contact points in the side position.
Both fall in the medium-firm zone back sleepers prefer (6.5/10 vs 5.5/10) — either works.
Firmer at 6.5/10 vs 5.5/10 — stomach sleepers need the extra support to keep the pelvis from sinking and arching the lower back.
Cooling rated the same on both — neither has a heat-management edge in our spec data.
stronger perimeter / edge support — the two specs heavier sleepers should weight most.
Softer at 5.5/10 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 |
| Helix Midnight | $1,373 | $1,099 | Save $274 |
The Casper The One is the budget choice at $799 — $300 less than the Helix Midnight ($1,099). 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.
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
Helix Midnight
Strengths
- ✓Great for side sleepers
- ✓Hybrid support + comfort
- ✓Reasonable price point
- ✓Zoned lumbar support
Considerations
- —100-night trial (shorter than some)
- —May not be firm enough for stomach sleepers
Who Should Buy Which?
Choose the Casper The One if you…
- →Couples / light sleepers
- →Budget-conscious shoppers
Choose the Helix Midnight if you…
- →Side sleepers / pressure relief
- →Sitting near the edge