Domus 4 Alternating Pressure Mattress with Micro Low Air Loss
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Lowest Prices Guaranteed
Free Shipping US
No Sales Tax
The Wellell Domus 4 is an alternating pressure mattress designed for people who spend long hours in bed and want to feel more comfortable staying there. Instead of lying on a surface that becomes harder to tolerate over time, it gently shifts support across the body, helping reduce the pressure that builds up from staying in one position.
As it adjusts, the mattress creates a surface that feels more forgiving and easier to relax into, so time in bed doesn’t feel as restrictive. When switched to low pressure mode, it softens to support a more natural resting position, making it easier to settle, switch off, and rest more comfortably. The result is a mattress that feels less like something you’re stuck in, and more like a place you can actually relax in throughout the day and into the night.
What’s Included
Domus 4 Alternating Pressure Mattress • Digital Pump Unit • Protective Quilted Cover • Air Tubing & Connectors • User Manual

The Domus 4 mattress offers exceptional comfort with its easy-to-use digital control panel. It lets you adjust the air levels to ensure consistent support, helping to prevent bottoming out and providing relief to the coccyx area, even while seated.
The mattress also creates a stable surface, making it easier for caregivers to assist patients. With its tailored design, the Domus 4 enhances comfort by gently enveloping the body, promoting a restful sleep. The mattress operates quietly, minimizing disturbances and ensuring a peaceful, comfortable experience for patients, contributing to better overall satisfaction.

The Domus 4 microclimate management feature with low air loss helps wick away moisture from the mattress surface, keeping the skin dry and comfortable.
Reducing excess moisture helps prevent skin irritation and pressure ulcers, creating a more comfortable sleeping environment. This feature promotes better skin health and enhances the overall comfort of the mattress, ensuring patients feel cooler and more at ease throughout the night.

The easy-to-use pump interface on the Domus 4 mattress allows caregivers to seamlessly switch between pressure settings, helping them customize the surface to best meet patient needs and optimize comfort and support.

The Domus 4 heel relief function allows for easy removal of individual air cells, floating the heels with zero pressure to prevent heel injuries. This feature helps reduce the risk of pressure ulcers and promotes better comfort and healing for sensitive areas, ensuring a safer and more effective care experience.

The seat inflation mode adjusts the pressure of the air cells to help prevent bottoming out while sitting. This feature enhances stability and provides better support, improving overall comfort for patients who are seated for extended periods. By maintaining proper pressure, it helps reduce the risk of pressure ulcers and ensures a more comfortable and secure seating experience.

The mattress offers multiple therapy modes to cater to various patient needs. The Static mode enhances patient immersion, providing a stable, supportive surface. The Alternate mode facilitates pressure redistribution, helping to prevent pressure ulcers. Additionally, the Max Firm mode offers increased firmness, making it ideal for nursing procedures and ensuring patient safety and comfort during care. These versatile modes ensure tailored support for improved patient outcomes.

Important Notice: Due to health and hygiene regulations, this product is non-returnable. We recommend verifying the dimensions and specifications before purchase to ensure it meets your needs.
Wellell Domus 4 Product Brochure
| Specifications | Details |
|---|---|
| Pump | |
| Dimension | 11.4"L x 7.3"W x 5"H |
| Weight | 5.1 lbs |
| Case Material | Fire Retardant ABS |
| Supply Voltage | 220 - 240 V / 50 - 60 Hz |
| Therapy Mode | Max Firm / Alternate / Static / Seat Inflate |
| Noise Level | <30dB |
| Mattress | |
| Dimension | 79"L, 35"W, 8"H |
| Type | 8” Replacement |
| Weight | 12.3 - 15.2 lbs |
| Top Cover Material | Nylon / PU, Poly / PU |
| Cell Material | Nylon / TPU |
| Maximum Patient Weight | 450 lbs |
Once your order is placed, you will receive a confirmation email acknowledging receipt of your order.
Orders are fulfilled directly through our authorized manufacturer partners to ensure you receive the newest production inventory.
If an item is temporarily unavailable, we will contact you promptly with updated availability and options. At that time, you may choose to proceed with the revised timeline or cancel for a full refund.
If you confirm that you wish to proceed, the order becomes a confirmed backorder. Once we commit funds with the supplier to reserve inventory specifically for your order, it cannot be cancelled.
You will receive email updates throughout the process, including tracking details once your order ships.
Cancellations within 24 hours may be approved at our discretion if the order has not yet been placed with the supplier or shipped.
Eligible products may be returned within 7 days of delivery with prior return authorization.
Approved returns may be subject to:
Returned items must be unused, in original packaging, and include all parts, accessories, manuals, and documentation.
Return requests submitted after 7 days of delivery may not be eligible for approval at our discretion.
To request a return authorization, please contact:
support@firstclassmobility.com
Some products may require advance reservation to secure manufacturer inventory.
Pre-orders and confirmed backorders are paid in full at the time of purchase. Once inventory is reserved and funds are committed with the supplier, these orders cannot be cancelled.
Estimated shipping timelines are provided in good faith. Delays may occur due to manufacturing schedules, supplier availability, or freight logistics.
Any exception granted is at our sole discretion and may be subject to a cancellation and restocking fee.
Due to hygiene, safety, or manufacturer restrictions, the following items are non-returnable:
Beds and mattresses
Batteries and chargers
All lifts (residential, vehicle, and patient lifts)
Lift chairs, geri chairs, and patient room chairs
Wheelchair cushions, support surfaces, and slings
Mobility and Lift accessories
Red light therapy devices
All products sold under the brand Discover Your Mobility
View the full list of non-returnable brands here
Accessories are final sale and are not eligible for return or refund unless they arrive damaged, defective, or were shipped in error.
For purposes of this policy, an accessory is any optional add-on, enhancement, replacement component, comfort item, positioning aid, storage item, battery, charger, or similar product designed for use with a primary piece of durable medical equipment.
Examples include, but are not limited to:
- Spare batteries
- Chargers
- Cup holders
- Storage bags
- Seat cushions
- Positioning supports
- Travel covers
- Replacement parts
- Other optional add-ons and upgrades
Freight and large-item deliveries are scheduled to the address provided at checkout. Please ensure all delivery details are accurate before submitting your order.
If an order is refused at delivery or returned to the sender, a 25% restocking fee will apply, and all outbound and return shipping costs will be the customer’s responsibility.
If an incorrect or incomplete address is provided and the shipment requires re-delivery, address correction, or is returned to the sender, the customer is responsible for any additional shipping, freight, storage, or re-delivery fees charged by the carrier.
All products are covered by the manufacturer’s warranty, which varies by brand and product.
We are happy to assist you with documentation, proof of purchase, and guidance throughout the warranty process. Warranty service, repairs, and replacements are handled directly by the manufacturer in accordance with their terms and coverage.
After the return period has passed, any repair or replacement requests will be subject to the manufacturer’s warranty policy and may require return of the defective item for inspection.
If you experience any issue with your order, please contact us directly so we can resolve it as quickly as possible.
In the event of a payment dispute, we may provide order records, communication history, and this policy to the payment provider for review.
By placing an order with FirstClassMobility.com, you agree to the terms outlined in this Refund & Return Policy, including applicable restocking fees, shipping charges, and final sale exclusions.
Product specifications are provided by manufacturers as general guidance. Actual measurements and performance may vary slightly due to production tolerances, optional accessories, or model updates.
The Domus 4 mattress can support a maximum weight of 450 lbs
The mattress measures 79" in length, 35" in width, and 8" in height.
Yes, the Domus 4 mattress is an 8-inch thick replacement mattress that can fully replace a standard mattress.
The Domus 4 offers Static mode (for enhanced patient immersion), Alternate mode (for pressure redistribution), and Max Firm mode (for nursing procedures). It also includes a Seat Inflate Mode to prevent bottoming out while seated.
Yes, the mattress features Micro Low Air Loss technology, which effectively wicks away moisture for added comfort and better skin health.
The mattress has a cell-on-cell design, which provides continuous pressure support even during power outages.
The Domus 4 has visual and audible alerts to notify caregivers of any system failures, and the top cover is designed with welded seams to prevent fluid ingress and reduce the risk of infection.
Yes, the Domus 4 includes a CPR knob that allows rapid deflation for emergency situations.
Yes, it has a storage strap with a side buckle for rolling and storing the mattress, and it features a quick connector with a cap to transform it into a sealed static air mattress for transport.
The Domus 4 pump operates at less than 30 dB, ensuring a quiet and disturbance-free environment.
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