Nectar Ultra 15 Full Mattress - Medium Firm Cooling Comfort

Our review of the Nectar Ultra 15 Full mattress finds it best suited for sleepers who want a medium-firm feel with enhanced cooling and extra pressure relief; the single biggest reason to buy is its combination of four pressure relief layers plus zoned ergonomic support that targets back and hip comfort without sacrificing breathability. Set up is straightforward: the mattress ships compressed, unrolls easily, and claims to be ready in 24 hours. The year-long 365-night trial lets buyers test the mattress through all seasons, which reinforces confidence in long-term comfort and temperature performance.

Key Features

• 365-night home trial: A full year to test the mattress at home lets sleepers evaluate comfort across seasons without rush.
• 4 pressure relief layers: Four inches of extra contouring memory foam provides deeper pressure redistribution for the back and hips.
• Cooling fibers and phase change material: Four times more cooling fibers plus temperature-regulating material help maintain a more consistent sleeping temperature.
• Zoned ergonomic support layer: Targeted support zones balance cushioning and structure so the spine stays aligned in most positions.
• Simple setup: The mattress ships in a box, unrolls quickly, and expands to full shape within about 24 hours for easy installation.
• Safety-conscious construction: Made without ozone depletors, mercury, lead, formaldehyde, or phthalates for peace of mind.

Who It's For

The Nectar Ultra 15 Full is a strong option for back sleepers and combination sleepers who want medium-firm support with enhanced pressure relief around the hips and lower back. The added cooling fibers and phase change material will also benefit sleepers who tend to run warm and need a more breathable memory foam setup.

Side sleepers who need a very soft top layer may prefer a softer model, and people seeking a very firm, innerspring feel should look elsewhere. Also, those who require immediate full firmness on day one should note the mattress can take up to 24 hours to reach its intended feel.

Pros & Cons

Pros

• High level of pressure relief from four extra inches of contouring foam helps relieve back and hip discomfort.
• Significantly improved cooling with four times more cooling fibers and phase change material for better temperature regulation.
• 365-night trial and easy setup reduce purchase risk and make home testing simple.
• Safety-conscious materials free of common harmful substances.

Cons

• Some sleepers report mixed impressions of firmness and occasional uneven support that may affect those with specific lower back issues.
• Memory foam contouring may feel too slow-moving for people who prefer a very bouncy or responsive mattress.

Specifications

Our Verdict

The Nectar Ultra 15 Full is a solid choice for those seeking medium-firm memory foam with enhanced cooling and targeted support; it offers particularly good value for back and combination sleepers who want pressure relief and a year-long trial to confirm long-term comfort. While not ideal for seekers of a very firm innerspring feel or ultra-fast response, its lineup of cooling features and zoned support make it worth considering.

Frequently Asked Questions

How long before the mattress is ready to sleep on?
The mattress expands immediately but reaches its intended feel within about 24 hours after unboxing.

Will this mattress sleep hot?
The Ultra 15 adds four times more cooling fibers and phase change material to improve temperature regulation compared with the Classic model, so it should sleep noticeably cooler for many warm sleepers.

What if I do not like it after trying?
The 365-night home trial lets you sleep on it across seasons and return it within the trial period if it does not meet your needs.