Diamond Mattress Black Diamond Hybrid vs Purple RestorePlus Hybrid Mattress
Detailed side-by-side comparison — pricing, specs, performance ratings, and our pick.

| Feature | Diamond Mattress Black Diamond Hybrid | Purple RestorePlus Hybrid Mattress |
|---|---|---|
| Overview | ||
Type | Hybrid | Hybrid |
Firmness Published feel or standardized wording | Plush, Medium, Firm | Medium-Soft |
Queen Price Current / sale price | $2,599 | $3,149 |
Trial Period Terms from the linked seller | ✓ 120 nights at Diamond Mattress; 30-night minimum; $99 fee | 100 nights at Purple |
Warranty | 20 years | 10 years |
| Performance Ratings | ||
Cooling Hot sleepers | Excellent | Excellent |
Motion Isolation Partners, light sleepers | Very good | Very good |
Pressure Relief Shoulder and hip cushioning | Very good | Excellent |
Edge Support Sit/sleep near edge | Very good | Very good |
Durability Long-term performance | Very good | Very 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 | Available | Affirm |
| Materials & Certification Scope | ||
Listed certifications / claims Check model and material scope |
|
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Certificate limitations Not an odor or safety guarantee | Confirm the certificate for the exact model and covered materials. A material certificate does not certify every part of a mattress or guarantee no odor. | Confirm the certificate for the exact model and covered materials. A material certificate does not certify every part of a mattress or guarantee no odor. |
| Best For | ||
Ideal sleeper profiles |
|
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| Actions | Full ReviewCheck price at Diamond Mattress → Buy with confidence 120-night comfort guarantee at Diamond Mattress | |
Need Help Deciding?
For most sleepers, we recommend the Diamond Mattress Black Diamond Hybrid over the Purple RestorePlus Hybrid Mattress. It scores higher in price-to-value and offers strong overall value at $2,599 (vs $3,149). The Purple RestorePlus Hybrid Mattress is the better choice only if you have a strong preference for that brand's specific feel or design.
Diamond Mattress Black Diamond Hybrid vs Purple RestorePlus Hybrid Mattress: What Actually Differs
Both the Diamond Mattress Black Diamond Hybrid and Purple RestorePlus Hybrid Mattress are hybrid mattresses, so the real differences come down to firmness tuning, performance ratings, and price rather than construction type. The Diamond Mattress Black Diamond Hybrid stands 14" tall versus 13" for the Purple RestorePlus Hybrid Mattress — a 1.0" gap that matters if you need deep-pocket sheets or are pairing with an adjustable base. The single largest performance gap is in pressure relief: the Purple RestorePlus Hybrid Mattress rates noticeably higher than the Diamond Mattress Black Diamond Hybrid, which is the deciding factor if that dimension is high on your list. On a Queen, the Diamond Mattress Black Diamond Hybrid runs $2,599 versus $3,149 for the Purple RestorePlus Hybrid Mattress — roughly $550 (17%) 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.
Plush, Medium, Firm includes the option closest to a balanced medium feel for back sleepers (vs Medium-Soft).
Plush, Medium, Firm includes the firmer published option (vs Medium-Soft), which may better suit shoppers who prefer more surface support.
Cooling rated the same on both — neither has a heat-management edge in our spec data.
Durability and edge-support ratings are equivalent — either holds up.
Plush, Medium, Firm includes the softer published option (vs Medium-Soft), which can make contouring easier for lighter sleepers.
Motion isolation rated the same on both — neither has a transfer-disturbance edge.
Price Comparison (Queen)
| Mattress | Reference | Current | Sale? |
|---|---|---|---|
| Diamond Mattress Black Diamond Hybrid | $3,399 | $2,599 | Save $800 |
| Purple RestorePlus Hybrid Mattress | $3,299 | $3,149 | Save $150 |
The Diamond Mattress Black Diamond Hybrid is the budget choice at $2,599 — $550 less than the Purple RestorePlus Hybrid Mattress ($3,149). That's a 17% gap, which is worth weighing against the spec differences before deciding which delivers better value for your situation. Both are currently below their listed comparison prices.
Diamond Mattress Black Diamond Hybrid
Strengths
- ✓Three firmness choices cover a wider range of comfort preferences
- ✓Cooling cover, Ice Flex bands, and titanium-infused memory foam target heat buildup
- ✓Wrapped coils and foam perimeter reinforcement support airflow and edge stability
Considerations
- —Costs more than Diamond's Flurry Lux Cooling Hybrid
- —The 14-inch profile may call for deep-pocket sheets
- —The manufacturer lists split-head King options rather than a standard Split King size
Purple RestorePlus Hybrid Mattress
Strengths
- ✓Deeper grid than Restore
- ✓Strong pressure relief for hips and shoulders
- ✓Hybrid airflow and support
- ✓Zoned coils provide targeted support
Considerations
- —Not offered in standard Twin
- —Premium price tier
- —Softer feel may not fit shoppers wanting firm support
Who Should Buy Which?
Choose the Diamond Mattress Black Diamond Hybrid if you…
- →Budget-conscious shoppers
- →Longer linked-seller trial
Choose the Purple RestorePlus Hybrid Mattress if you…
- →Side sleepers / pressure relief