Sweetnight Queen Mattress
Score: 82/100
Serta Perfect Sleeper Ultimate
Score: 79/100Rankings
The Sweetnight SMN-THCD-12-Q is a 12-inch queen hybrid mattress featuring gel memory foam, a pillow-top, and individually wrapped coils for balanced medium-firm support and motion isolation. Its high weight and initial off-gassing are notable trade-offs. Ideal for couples and plus-size sleepers seeking premium comfort and cooling.
The Serta Perfect Sleeper Ultimate 14.5-inch queen blends firm pillow-top comfort with Cool Twist Gel cooling and a robust 850-coil system, plus BestEdge edge support. Its firm feel and substantial weight may not suit those preferring plush softness. Great for sleepers desiring strong support and edge stability.
| Attribute | | |
|---|---|---|
10 yearsbest | 10 yearsbest | |
304.8 mm | 368.3 mmbest | |
100 daysbest | 100 daysbest | |
| ↓ lower better | — | 37.957 kgbest |
2best | 1 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Dimensions(2) | ||
Mattress Height (mm) | 304.8 mm | 368.3 mm |
Mattress Weight (kg) | 61-83 kg | 37.957 kg |
Comfort & Temperature(1) | ||
Cooling Technology | Gel Memory Foam | Cool Twist Gel |
Comfort & Support(1) | ||
Support Type | Medium Firm | Firm Pillow Top |
Certifications & Safety(1) | ||
Certifications | CertiPUR-US, OEKO-TEX 100 | CertiPUR-US |
Build & Materials(2) | ||
Coil Type | Pocketed Coils | 850-coil density (3-zone) |
Number of Foam Layers | 2 | 1 |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors are not directly cited for this model; manufacturer and retailer descriptions position the SMN-THCD-12-Q as a medium-firm hybrid that excels in pressure relief, cooling, and motion isolation, suitable for all sleeping positions and especially for couples sharing the bed.
