by Duxiana is one of the oldest luxury mattress brands in the world, with its highest quality mattresses and other related products. The Dux 303 mattress is a sister product of the Dux 3003 but without any frame. The company has been revolutionary in making its all-spring Mattress highly practical and comfortable.
The best feature of this Mattress is its firmness and flexibility, which is interchangeable. The plush top pad ensures quality sleep and is also removable. Next are the Pascal Cassettes, which offer customizable firmness levels according to your structure. Finally, the dual spring layers at the bottom complete the wholesome sleeping experience with comfort and support.
All the materials inside the Dux 303 mattress are durable, robust, and sustainable for the environment.
However, you can enjoy a much superior product at a more reasonable budget if you opt for our recommendation, i.e., Saatva’s Classic innerspring mattress. It is more dynamic, flexible, and suitable with an adjustable bed. Moreover, Saatva offers a 365-night free trial period, a lifetime warranty, and free white glove home delivery. These features are hard to beat.
The #1 alternative we recommend
Who Do We Recommend Dux 303 Frameless Mattress?
- This frameless model by Duxiana is suitable for someone who already has a bed frame.
- The Dux 303 mattress is suitable for highly active people and athletes.
- If you like sleeping on an all-spring mattress, then the Dux 303 is perfect.
Avoid Dux 303 Frameless Mattress if:
- You are looking for a budget-friendly mattress.
- If you don’t have a bed frame, you should look for other models from Duxiana.
Comfort & Firmness
The thought of an all-spring Mattress doesn’t ring any bell for many sleepers as it is too bouncy and firm. However, Duxiana took care of that image intelligently by introducing a removable top pad. This top pad is super plush that provides a comfortable sleeping experience. Don’t worry about getting stuck because the bottom spring layers balance out the extra plushness.
For firmness, the Pascal Cassettes are customizable to get the firmness level of your choice. This way, you can adjust soft, medium, and firm firmness levels according to your body’s needs.
We recommend Saatva’s Classic Mattress as it provides the ultimate comfort for every sleeping position.
Performance
The first impression of the Dux 303 mattress is the expectation of high performance, which is precisely the case. All the ingredients on this Mattress are ultra-durable and environmentally sustainable. Moreover, Duxiana has over 95 years of mattress manufacturing experience, ensuring premium and luxurious products come out of their factories. In Dux 303’s case, a higher price means high performing Mattress.
Saatva’s Classic Mattress is a hybrid mattress with a luxurious selection of ingredients, edge support, no sagging, and dedicated lumbar support. The 365 nights of the trial period, lifetime warranty, and white glove delivery elevate the overall performance.
Is it a Good Mattress for Back Pain?
All Duxiana beds, including the Dux 303 mattress, have one thing in common: perfect spinal alignment. The middle spring layer is dedicated to lumbar support, which positions your body so that your spine is always straight, whatever your sleeping position. Besides, you can adjust the Pascal Cassettes according to your sleeping position and weight to get perfect contouring and support.
However, Saatva’s Classic Mattress gives optimum support to the back for spinal alignment.
Sagging & Edge Support
The only way a spring mattress sag is if the raw material for springs is substandard. The Dux 303 mattress has the highest standard Swiss steel in its body, which is resilient and robust. Moreover, the plush top pad provides an extra cushion and weight transfer to prevent any sagging risk. It is essential to mention that the first five years out of twenty years of warranty are exclusive to Swiss steel.
The suspension base spring layer is highly effective in providing excellent edge support.
The high-density foam layer as a boundary in Saatva’s Classic Mattress provides much better edge support as it is only present for edge support. Furthermore, the coil springs and the base foam layer adapt to your body’s pressure, removing any sagging issues.
Motion Isolation
Generally, all-spring mattresses are prone to a lot of motion transfer due to too much bounce in them. However, the Dux 303 Frameless Mattress is an entirely different technology. The suspension coils at the base, the spring layer for lumbar support, and the Pascal Cassette springs are all responsive to your body’s movement and weight. This Mattress adapts individually according to the number of sleepers in a bed. Now you don’t have to worry about waking up at night because your partner just converted his sleeping position.
Sleeping Position & Weight
The only extraordinary feature that separates the Dux 303 from other all-spring mattresses is the flexible firmness levels according to the sleeper’s choice. The Pascal’s Cassettes at the top layer are customizable according to the sleeper’s weight, sleeping style, and preference. This way, the Dux 303 can handle any weight category within reasonable limits. This structure prioritizes any sleeping position according to personal preference.
The Saatva Classic Mattress continues to be a top choice in its category. With options for three different firmness levels and two thickness options, you can easily find a mattress that accommodates your weight and comfort preferences.
Breathability & Heat Transfer
There is no blockage for air ventilation and heat retention in the all-spring Dux 303 mattress. Moreover, the removable top pad has latex and cotton fillings that are naturally soft and breathable. If you are a hot sleeper, you will find the mattress surface cool and dry, ideally according to your taste.
Nevertheless, the Saatva Classic Mattress boasts a cover made from organic cotton and a base equipped with coils, contributing to exceptional airflow and breathability.
Durability
Duxiana is the symbol of the finest craftsmanship in making a mattress, and the Dux 303 is a perfect analogy of that working ethic. Since this Mattress is all about coil springs, only healthy and reliable steel must always be used. Therefore, the company uses the finest Swedish steel, which is robust, durable, and premium. Moreover, these springs are majorly covered by a 20-years warranty. So, the Dux 303 frameless mattress is a durable product.
However, Saatva Classic Mattress doesn’t show any weakness in durability, which is evident from the superior build quality.
What is Dux 303 Frameless Mattress Made?
Let’s see what the inside of the Dux 303 Frameless Mattress looks like:
- All the Dux beds come with a removable top pad that is ultra-plush. The fillings are natural latex and cotton fibers.
- The beginning of the Mattress has customizable Pascal Cassettes for support.
- In the middle, there is another spring layer with continuing lumbar support.
- In the end, the coil springs provide suspension for minimum motion isolation.
Is Dux 303 Frameless Mattress Flippable?
No, the Dux 303 mattress is not built for flipping.
Does Dux 303 Frameless Mattress Come in a Box?
It’s common for ultra-luxury mattress brands, like Duxiana, not to compress their products in a box.
Is Dux 303 Frameless Mattress Usable With an Adjustable Bed?
No, this particular Mattress is not compatible with an adjustable bed. However, Duxiana has other mattresses that are usable with an adjustable bed.
Is Dux 303 Frameless Mattress Made in the USA?
The Dux 303 frameless mattress is a Swedish brand, but it follows all the standards necessary in the USA market.
Price Range
Following are the details of the Dux 303 Frameless Mattress’s price range:
| Size | Dimensions (Inches) | Price (USD) |
| Twin Long | 38 x 80 | 5,240 |
| Queen | 60 x 80 | 7,605 |
| King | 76 x 80 | 9,010 |
| Cal. King | 71 x 83 | 8,855 |
Trial, Shipping & Warranty
The Dux 303 Frameless Mattress has the following trial, warranty, and shipping options:
- No trial period – The Dux 303 Frameless Mattress is a significantly high-end brand with a niche clientele. In this scenario, their customers know what they are getting. So, there is no need for a trial period.
- 20 Years Warranty – Duxiana offers 20 years of warranty for its products, including the Dux 303.
- Nationwide free shipping – After ordering your Dux 303 Mattress, the company will deliver it to your address for free.
Our Verdict
The Dux 303 frameless mattress is a superior rendition of an all-spring Mattress with better quality and comfort. This mattress is perfect for you if you have a reasonable budget for a new mattress and like sleeping on an all-spring mattress.
However, we still recommend Saatva’s Classic Mattress because it is much superior in quality, luxury comfort, body contouring, dedicated edge support, and a healthy and breathable sleeping experience.