Casper The One vs Nectar Premier Copper
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.
| Feature | Casper The One | Nectar Premier Copper |
|---|---|---|
| Overview | ||
Type | Memory Foam | Memory Foam |
Firmness 1 = softest, 10 = firmest | 6.5 / 10 | 6 / 10 |
Queen Price Current / sale price | $799 | $1,599 |
Trial Period Return window | 100 nights | 365 nights |
Warranty | 10 years | Lifetime |
| Performance Ratings | ||
Cooling Hot sleepers | Moderate | High |
Motion Isolation Partners, light sleepers | Excellent | Excellent |
Pressure Relief Hip/shoulder pain | Good | Excellent |
Edge Support Sit/sleep near edge | Fair | Fair |
Durability Long-term performance | Good | Excellent |
| 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, OEKO-TEX |
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 Casper The One over the Nectar Premier Copper. It scores higher in cooling, price-to-value and delivers stronger overall value. The Nectar Premier Copper is the better choice only if you want more time to decide (365-night trial vs 100 nights).
Casper The One vs Nectar Premier Copper: What Actually Differs
Both the Casper The One and Nectar Premier Copper are memory foam mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Nectar Premier Copper 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 pressure relief: the Nectar Premier Copper rates noticeably higher than the Casper The One, which is the deciding factor if that dimension is high on your list. On a Queen, the Casper The One runs $799 versus $1,599 for the Nectar Premier Copper — roughly $800 (50%) less, which is enough to factor into the decision unless the pricier model wins clearly on the specs you care about. Trial periods aren't symmetrical either: the Nectar Premier Copper ships with a 365-night sleep trial versus 100 nights for the Casper The One, giving you a longer in-home runway to send it back if the feel doesn't land.
Which Is Better For Your Sleep Style?
Higher pressure-relief rating, which is what protects hip and shoulder contact points in the side position.
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.
Cooling rating not available for one or both mattresses — spec not available.
better long-term durability — 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.
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 |
| Nectar Premier Copper | $1,999 | $1,599 | Save $400 |
The Casper The One is the budget choice at $799 — $800 less than the Nectar Premier Copper ($1,599). That's a 50% 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
Nectar Premier Copper
Strengths
- ✓Copper-infused foam (cooling + antimicrobial)
- ✓Phase-change Tencel cover
- ✓365-night trial
- ✓Lifetime warranty
Considerations
- —All-foam (no coil bounce)
- —Fair edge support
- —Premium pricing for foam-only
Who Should Buy Which?
Choose the Nectar Premier Copper if you…
- →Side sleepers / pressure relief
- →Trial-period sensitive buyers
- →Organic / non-toxic priority shoppers