ComparisonLast updated on 30 July 2025
Napp vs Emma Diamond Hybrid
Easily compare the Emma Diamond Hybrid vs Napp Mattresses side-by-side.
Latest Promotions | |
Mid-Winter special - Take 5% off your order now - until 4th August Discount code MidWS5 See website | Emma is no longer operating in New Zealand. See offer |
At a glance | |
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Recommended For | |
The Napp mattress has a medium firmness best suited for side sleepers and couples who find it challenging to agree on a mattress's firmness. | The Emma Diamond Hybrid mattress with its medium-firm feel is for kiwis who prefer a mattress with superior support, comfort, and cooling. |
What we like | |
The mattress is medium-firm and balances the need for a sturdy, firm, yet breathable mattress. The cover is also removable and comes from a material that excellently controls temperature. o | The Emma Diamond Hybrid mattress is a top-of-the-line product that provides unparalleled comfort and support. As someone who has had the opportunity to test this mattress in the comfort of my home in Dunedin, I can confidently say that it is one of the best mattresses I have ever slept on.
One of the standout features of the Emma Diamond Hybrid is its ability to conform to the body's natural curves, providing a supportive and comfortable sleeping experience. The mattress uses advanced zoning technology to distribute weight evenly across the surface, reducing pressure points and allowing for a more restful night's sleep.
In addition to its supportive design, the Emma Diamond Hybrid also features a plush pillow-top layer that adds an extra layer of comfort to the sleeping surface. The soft yet durable cover material also contributes to the luxurious feel of the mattress.
Another great feature of this mattress is its ability to regulate temperature. The combination of memory foam and pocket springs allows for optimal air circulation, preventing overheating and ensuring a comfortable sleep throughout the night.
Overall, I would highly recommend the Emma Diamond Hybrid mattress to anyone looking for a comfortable and supportive sleep surface. Its innovative design, plush pillow-top layer, and temperature regulation features make it an excellent investment for anyone looking to improve their sleep quality. |
Keep in Mind | |
When you unpack the Napp mattress for the first time, it emits some off-gas smells that result from the manufacturing process, much like any other all-foam mattress. People who are allergic to off-gas compounds may struggle with this for one or two nights. Its edges also lack reinforcement, so weightier customers might choose to sleep in the centre instead of the edges of the mattress. | The Emma Diamond Hybrid has the highest RRP of any of the mattresses listed on this NZ site. So don't forget to click our links and apply our discount code at checkout to save! |
Essential Mattress Info | |
Brand | |
Napp | Emma (New Zealand) |
About | |
Napp is made in New Zealand. A 100% owned and operated New Zealand family business since 1978 and selling online since 2001. | Emma is one of the most awarded mattress companies globally, and recently sold it's four millionth mattress. |
Mattress Type | |
Memory foam | Hybrid (foam & springs) |
Prices | |
Video | |
Certifications | |
OEKO-TEX® | |
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Trial & Warranty | |
Trial Period | |
Trial Period (nights) | |
100 | 120 |
Warranty Length (years) | |
10 | 10 |
Firmness Options | |
One Firmness Fits All? | |
Adjustable Firmness | |
Half-Half Firmness | |
Selectable Firmness | |
Flippable / Reversible Firmness | |
Firmness Info | |
The mattress has a base layer that supports the natural curvature of your body - not too firm, not too soft. | The Emma Diamond Hybrid has a medium-firm feel. It is slightly plusher (less firm) than the Emma Comfort. |
Mattress Construction | |
Materials Overview | |
Three layer construction:
- Breathable European cover
- 5cm Hygroflex Foam
- 5cm Gel Infused Memory Foam
- 15cm High Density Foam Support Core. | The Emma Diamond Hybrid mattress is "The Diamond Standard of Mattresses" and consists of four different layers:
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Comfort Info | |
A generous layer of advanced temperature balancing comfort foam gently cradles your body, whilst allowing for easy movement during the night. Its excellent hygrothermal properties help to dissipate heat and humidity, for a more comfortable sleep. It is environmentally friendly and hypo-allergenic, making it perfect for asthmatics. | Each Emma mattress is a result of an extensive development phase conducted by Emma's team of sleep experts and researchers. Leveraging top German engineering and expertise in neuroscience to give you the best sleep you've ever had.
Sleep faster, deeper, and longer with the revolutionary Diamond Degree® foam infused with graphite particles that helps regulate your body temperature. |
Support Info | |
N/A | Experience the most luxurious sleeping experience with Emma's most premium, pressure relieving, and cooling mattress, made with Diamond Degree® Technology.
This 25cm hybrid mattress features layers of flexible foam and individually encased pocket springs, which contour to your body regardless of your sleeping position. |
Comfort Specs | |
A Hygroflex comfort layer, exclusive to Napp, has superior temperature control than regular memory foam.
A mid layer of Gel Infused Memory Foam moulds to your curves. It's pressure-relieving properties help to increase blood circulation, which reduces tossing and turning that can disrupt your sleep. This high density memory foam is gel-infused so it won't overheat like some memory foams. | Diamond Degree® foam is infused with diamond and graphite particles. This innovative coating quickly dissipates excess heat away, thereby extending the duration of your deep sleep phase. The foam's low rolling-resistance also helps minimize feelings of movement so you sleep undisturbed.
Individually encased pocket springs offer superior breathability over a standard foam mattress by allowing air to flow more freely. |
Support Specs | |
University research has shown Hygroflex foam to offer superior pressure point relief than other memory foams. It also allows you move freely and not have that 'stuck in' feeling you may have had with other foams.
The high density foam support core provides comfortable support and durability, while minimising partner disturbance and roll together. | Adaptive comfort foam is ergonomically designed and adapts to your body and optimally distributes body pressure for a more comfortable sleep regardless of your build and sleeping position.
The individually encased steel pocket springs provide dynamic body adaptation.
The HRX supportive base foam layer is extremely durable and has incisions that allow the mattress to adapt well to your body by providing better support for your pelvis, shoulders, and neck. |
Fabric Specs | |
Cool to the touch European cover created with Outlast© technology. This stretch knit cover will help you sleep comfortably cool, is water resistant and is removable (zip off) for easy care. | A fully breathable and washable premium cover. Designed to help facilitate heat dissipation of the Diamond Degree graphite foam. In-built handles allow for easy handling.
The top cover is made from 99% polyester and 1% elastane, the side cover is 100% polyester, and the bottom cover is 87% polyester and 13% polypropylene. |
Manufactured in | |
New Zealand | ? |
Suitability | |
Side Sleepers | |
Back Sleepers | |
Size & Weight | |
Single | |
Single Dimensions | |
188 x 92 x 25.5 cm | 188 x 92 x 25 cm |
Single Weight (kg) | |
20 | 17 |
King Single | |
King Single Dimensions | |
203 x 107 x 25.5 cm | 203 x 107 x 25 cm |
King Single Weight (kg) | |
25 | 19 |
Double | |
Double Dimensions | |
188 x 138 x 25.5 cm | 188 x 138 x 25 cm |
Double Weight (kg) | |
30 | 26 |
Queen | |
Queen Dimensions | |
203 x 153 x 25.5 cm | 203 x 153 x 25 cm |
Queen Weight (kg) | |
35 | 29 |
King | |
King Dimensions | |
203 x 168 x 25.5 cm | 203 x 168 x 25 cm |
King Weight (kg) | |
39 | 33 |
Super King | |
Super King Dimensions | |
203 x 183 x 25.5 cm | 203 x 183 x 25 cm |
Super King Weight (kg) | |
42 | 35 |
Delivery | |
Delivery Cost | |
FREE | FREE |
Delivery Info | |
Free delivery throughout New Zealand. Delivery times are 48 hours to your home in Auckland and 3 to 5 working days to the rest of New Zealand. | Delivery of your Emma mattress is free of charge, typically within 1-10 business days. Emma will donate any returned mattresses to the Salvation Army or one of their other charitable partners. |
Prices | |
Latest Promotions | |
Mid-Winter special - Take 5% off your order now - until 4th August Discount code MidWS5 See website | Emma is no longer operating in New Zealand. See offer |