Sleepnight mattresses are thick, feature-forward hybrid mattresses that pair pocket springs with latex or foam comfort layers. They’re built for a supportive, “finished” feel rather than a deep, slow-sinking hug.
In our rotations, these models suited back-and-side combo sleepers and couples who want stability. If you want a plush memory-foam cradle, a softer foam bed will fit better—see our mattress reviews.
Table of Contents
- Product Overview
- Testing Team Takeaways
- Sleepnight Mattress Comparison Chart
- How We Tested It
- Sleepnight Mattress: Our Testing Experience
- Compare Performance Scores of These Mattresses
- How to Choose the Sleepnight Mattress
- Limitations
- Sleepnight Mattress Vs. Alternatives
- Pro Tips for Sleepnight Mattress
- FAQs
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
| SLEEPNIGHT Affinity 13" | 4.2 | Buoyant support with a balanced feel | Motion isolation is good, not elite | Combo sleepers who want steady lumbar support |
| SLEEPNIGHT Arctic 14" | 4.2 | Coolest feel; stable mid-range support | Edge is solid, not ultra-firm | Hot sleepers who still want responsiveness |
| SLEEPNIGHT Emerald Comfort 13.5" | 4.1 | More cushion; strong pressure relief for a hybrid | Less snap than the latex-forward models | Side-leaning sleepers who want plushness without collapse |
| SLEEPNIGHT Ophelia 13" | 4.1 | Best motion isolation; calmer “settle-in” feel | Less bounce; turning can feel slower | Couples and lighter side sleepers who want quiet nights |
Testing Team Takeaways
Across these Sleepnight models, we felt a supportive coil core with a more finished top. In our testing, Affinity and Arctic stayed more buoyant under the hips, while Ophelia felt the calmest for shared sleep.
Affinity was our most consistent all-rounder, Arctic stood out for cooling, and Emerald Comfort and Ophelia were easier to settle into for pressure relief.
Sleepnight Mattress Comparison Chart
| Feature | Affinity 13" | Arctic 14" | Emerald Comfort 13.5" | Ophelia 13" |
| Brand-stated firmness | Medium | Medium | Medium Soft | Medium Soft |
| Top style | Euro Top + Pillow Top | Euro Top | Euro Top + Pillow Top | Euro Top + Pillow Top |
| Comfort materials (listed) | 100% natural latex | 100% natural latex | High resilience quilted foam + high resilience comfort support layer + 100% natural latex | Visco elastic gel memory foam |
| Support core (listed) | Orthopaedic individual pocket spring | Orthopaedic individual pocket spring | Orthopaedic individual pocket spring | Orthopaedic individual pocket spring with foam edge encasement |
| Cover fabric (listed) | Zinc Pro knitted fabric | Cool silk knitted fabric | Anti-static knitted fabric | Anti-static + cooling knitted fabric |
| Our cooling impression | Cool and steady | Coolest of the four | Neutral to slightly warm | Neutral; warmer in deeper sink |
| Our support impression | Most “lifted” feel | Balanced, stable mid-range | Supportive with more cushion | Supportive but more damped/slow |
| Our motion isolation impression | Good | Good | Very good | Best |
| Our responsiveness impression | Fast and springy | Fast with a smoother top | Moderate; less snap | Slowest; more “settle” |
How We Tested It
We rotated these Sleepnight models through the same bedrooms and routines, then compared notes after nightly use and short daytime sessions (see how we test mattresses). Scores covered support, cooling, pressure relief, motion isolation, responsiveness, edge support, and durability using repeatable checks (alignment, heat buildup, pressure points, partner disturbance, ease of turning, edge stability, and week-to-week feel).
Sleepnight Mattress: Our Testing Experience
SLEEPNIGHT Affinity 13"
Our Testing Experience

Affinity felt quick and steady from the first night. In our tests, hips stayed level on back and side, and the surface rebounded fast when we rolled or sat up. Marcus, who tends to bottom out on softer beds, stayed supported through side-to-stomach turns. Couples could still notice movement, but it came through as a soft ripple rather than a sharp jolt.
What we liked
- Buoyant, even support that kept hips from dipping
- Easy turning with a fast rebound
- Cooling stayed consistent in longer contact
Who it is best for
- Back sleepers and combo sleepers who want alignment first
- Anyone who dislikes deep sink but still wants some cushion
- Heavier sleepers who worry about hammocking
Where it falls short
- Not the most isolating choice for very light sleepers
- If you want a plush, slow-melting cradle, it can feel too lively


Details
- Top style: Euro Top + Pillow Top
- Comfort material (listed): 100% natural latex
- Support core (listed): orthopaedic individual pocket spring
- Brand-stated firmness: medium
- Warranty: 12 years
- Shipping window and schedule (listed): free delivery within 1 to 3 business days; deliveries Mon–Sat (12pm–5pm)
- Mattress height (listed): 33cm

Review Score
| Metric | Score | Remarks |
| Support | 4.5 | Strong hip/lumbar stability |
| Cooling | 4.4 | Low heat buildup |
| Pressure Relief | 4.0 | Balanced; less cradle |
| Motion Isolation | 3.8 | Good; not elite |
| Responsiveness | 4.5 | Fast, easy turns |
| Edge Support | 4.2 | Stable perimeter |
| Durability | 4.3 | Consistent week to week |
| Overall Score | 4.2 | Most balanced daily-driver for mixed positions |
SLEEPNIGHT Arctic 14"
Our Testing Experience

Arctic was our most consistently cool-feeling option. On warmer nights with the same sheets, it felt less stuffy early on, especially for back sleeping. The surface stayed stable for reading and laptop time, with a gentle springiness that didn’t tip into a trampoline feel.
What we liked
- Coolest feel of the four in extended contact
- Stable medium support without harshness
- Smooth, responsive movement when changing positions
Who it is best for
- Hot sleepers who want a cooler initial touch
- Back sleepers and combo sleepers who value steadiness
- People who dislike slow-sinking foam
Where it falls short
- Light sleepers may still pick up partner movement
- Side sleepers who want plush shoulder sink may prefer softer options

Details
- Top style: Euro Top
- Comfort material (listed): 100% natural latex
- Support core (listed): orthopaedic individual pocket spring
- Brand-stated firmness: medium
- Warranty: 12 years
- Shipping window and schedule (listed): free delivery within 1 to 3 business days; deliveries Mon–Sat (12pm–5pm)
- Mattress height (listed): 36cm

Review Score
| Metric | Score | Remarks |
| Support | 4.4 | Strong hip/lumbar stability |
| Cooling | 4.6 | Low heat buildup |
| Pressure Relief | 4.0 | Balanced; less cradle |
| Motion Isolation | 3.8 | Good; not elite |
| Responsiveness | 4.4 | Fast, easy turns |
| Edge Support | 4.1 | Stable perimeter |
| Durability | 4.3 | Consistent week to week |
| Overall Score | 4.2 | Coolest pick that still feels responsive and steady |
SLEEPNIGHT Emerald Comfort 13.5"
Our Testing Experience

Emerald Comfort gave us the most immediate cushion without losing support underneath. During longer side-sleep stretches, shoulders sank in more naturally, and we didn’t need as much pillow fiddling to stay aligned. Compared with the latex-forward models, it felt quieter and less snappy, but still easy enough to move around on.
What we liked
- Softer surface with strong pressure relief for a hybrid
- Quieter, steadier feel for shared sleep
- Comfortable for longer side-sleep stretches
Who it is best for
- Side-leaning combo sleepers who want a gentler top
- Couples who want reduced disturbance without a “dead” feel
- People sensitive to shoulder and outer-hip pressure
Where it falls short
- Less springy than the latex-forward models
- Firm-mattress purists may find it too cushioned at first contact

Details
- Top style: Euro Top + Pillow Top
- Comfort materials (listed): high resilience quilted foam; high resilience comfort support layer; 100% natural latex
- Support core (listed): orthopaedic individual pocket spring
- Brand-stated firmness: medium soft
- Warranty: 12 years
- Shipping window and schedule (listed): free delivery within 1 to 3 business days; deliveries Mon–Sat (12pm–5pm)
- Mattress height (listed): 32cm

Review Score
| Metric | Score | Remarks |
| Support | 4.1 | Strong hip/lumbar stability |
| Cooling | 4.0 | Low heat buildup |
| Pressure Relief | 4.4 | Balanced; less cradle |
| Motion Isolation | 4.2 | Good; not elite |
| Responsiveness | 4.0 | Fast, easy turns |
| Edge Support | 4.0 | Stable perimeter |
| Durability | 4.1 | Consistent week to week |
| Overall Score | 4.1 | Best pressure relief without losing support |
SLEEPNIGHT Ophelia 13"
Our Testing Experience

Ophelia was our calmest, most couple-friendly surface. When one tester got in and out of bed, the mattress absorbed the movement better than the other models. On the side, it offered deeper contouring and a more settled feel. The tradeoff is speed: turning is still doable, but it doesn’t give the quick “pop” you get from the springier builds.
What we liked
- Best motion isolation and the calmest shared-sleep surface
- Deeper pressure relief for side sleeping
- Strong edge confidence during perimeter use
Who it is best for
- Couples where one person moves a lot at night
- Light-to-average sleepers who like a softer landing
- Anyone who prefers a quieter, more damped feel
Where it falls short
- Less bounce; some may find repositioning slower
- Hot sleepers may prefer the cooler feel of Arctic

Details
- Top style: Euro Top + Pillow Top
- Comfort material (listed): visco elastic gel memory foam
- Support core (listed): orthopaedic individual pocket spring with foam edge encasement
- Brand-stated firmness: medium soft
- Warranty: 12 years
- Shipping window and schedule (listed): free delivery within 1 to 3 business days; deliveries Mon–Sat (12pm–5pm)
- Mattress height (listed): 33cm

Review Score
| Metric | Score | Remarks |
| Support | 4.0 | Strong hip/lumbar stability |
| Cooling | 3.9 | Low heat buildup |
| Pressure Relief | 4.5 | Balanced; less cradle |
| Motion Isolation | 4.5 | Good; not elite |
| Responsiveness | 3.7 | Fast, easy turns |
| Edge Support | 4.3 | Stable perimeter |
| Durability | 4.0 | Consistent week to week |
| Overall Score | 4.1 | Best for couples who want calm nights and contouring |
Compare Performance Scores of These Mattresses
| Mattress | Overall Score | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness |
| SLEEPNIGHT Affinity 13" | 4.2 | 4.5 | 4.0 | 4.4 | 3.8 | 4.3 | 4.5 |
| SLEEPNIGHT Arctic 14" | 4.2 | 4.4 | 4.0 | 4.6 | 3.8 | 4.3 | 4.4 |
| SLEEPNIGHT Emerald Comfort 13.5" | 4.1 | 4.1 | 4.4 | 4.0 | 4.2 | 4.1 | 4.0 |
| SLEEPNIGHT Ophelia 13" | 4.1 | 4.0 | 4.5 | 3.9 | 4.5 | 4.0 | 3.7 |
How to Choose the Sleepnight Mattress
Start with sleep position and feel preference. If you want a buoyant surface that keeps hips level, Affinity is the safest pick. If you run hot, Arctic is the cleanest cooling choice. If you want a gentler top for shoulders and outer hips, Emerald Comfort is the softest landing without collapse. If you share a bed with a restless partner, Ophelia is the calmest option. For heavier sleepers, Affinity or Arctic typically felt more “lifted” in our tests than the softer models. (More guidance: how to choose a mattress.)
Limitations
These models are thicker hybrids with a finished top, so if you prefer a low-profile mattress, the height may feel like a lot. If you need extreme motion isolation, the springier latex-forward builds won’t beat a deep-foam style. And if you want a very firm, flat surface, Emerald Comfort and Ophelia can feel too cushioned at first contact—even though support underneath stays solid.
Sleepnight Mattress Vs. Alternatives
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Why choose these models
- Hybrid builds with pocket springs and responsive comfort layers across the lineup
- Brand-listed free delivery/installation and long warranties on these models
- A range from medium to medium-soft that covers most combo-sleeper needs
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Alternatives to consider
Pro Tips for Sleepnight Mattress
- Give your body a few nights to adjust—sleep temperature matters—hybrids can feel different once you settle in.
- Between Affinity/Arctic and Emerald/Ophelia, decide if you want more bounce or more damping.
- For side sleeping, dial in pillow height; a softer top changes shoulder drop.
- For couples, do a quick disturbance check: one partner gets in/out while the other rates it.
- Use a supportive, even foundation; uneven support can exaggerate sink and motion.
FAQs
Which Sleepnight Mattress felt easiest to live with every day?
Affinity felt the most plug-and-play, balancing support, cooling, and easy movement across positions.
Which model worked best for a restless partner?
Ophelia absorbed movement the most in our partner checks and stayed calm when someone got up or shifted often.
Which option felt coolest in long contact?
Arctic stayed the most breathable in longer contact sessions and felt less stuffy on warm nights.
If I’m mostly a side sleeper, should I avoid the medium models?
Not necessarily, but Emerald Comfort and Ophelia gave us more natural shoulder and hip sink during longer side-sleep stretches.