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Nimbus 4

Mattress Replacement System (MRS) with alternating pressure redistribution

The Nimbus® 4 system combines automatic adjustment of cell pressures, the Heelguard™ and unique vent valve technology to provide effective pressure relief and improved solutions for a wide range of resident/patient management issues.

In clinical use for more than 20 years, Nimbus alternating Mattress Replacement Systems (MRS) have consistently proven to be one of the most efficient, comfortable and cost effective pressure redistributing mattress replacements used across all care environments from critical and intensive care to nursing or private homecare.
The Nimbus 4 MRS provides effective alternating pressure relief combined with automatic adjustment to the weight, size and position of the individual, ensuring optimum pressure relief and comfort.
The mattress is designed to support residents/patients up to 250 kg (550 lbs) and provides the best possible pressure redistribution for all resident/patient types all stages of tissue damage.
An Automatt sensor pad, below the entire length of the mattress, works with the automatic pump to constantly readjust cell pressures keeping the interface pressure below 10 mmHg for up to 40% of the operating cycle.
Five heel cells incorporate vent valve technology, allowing the caregiver to fully remove interface pressure from this high risk area, and providing zero pressure for the most vulnerable residents/patients, such as those with limb ischaemia or existing wounds.
The mattress design provides a 200 mm (8”) inflated cell height with an anti-sink torso section, supporting residents/patients in lying or profiled positions, thereby reducing the risk of bottoming out.

Mattress (specifications apply to both
the Nimbus 4 and Nimbus professional systems)

Length2060 mm (81")2060 mm (81")
Width890 mm (35")800 mm (31 1/2")
Maximum height215 mm (8 1/2") – at edges215 mm (8 1/2") – at edges
Maximum profile height380 mm (15") – at edges380 mm (15") – at edges
Cell height203 mm (8") – inflated203 mm (8") – inflated
Weight (including packaging)15.5 kg (XX lbs)14.3 kg (XX lbs)
Cover materialPU coated knitted fabricPU coated knitted fabric
Cell material0.3 mm (XX") PU flexible sheeting0.3 mm (XX") PU flexible sheeting
Max patient weight250 kg (550 lbs)250 kg (550 lbs)


Length508 mm (20")
Height220 mm (8 3/4")
Depth100 mm (4")
Weight5.7 kg (25")
Case materialABS/polycarbonate blend
Supply voltage UK220-240 VAC, 50Hz
Electrical rating35 VA
Fuse ratingF500mA
FiltersAll service replaceable
Operating cycle10 minutes

Tube set

Length1000 mm (39 1/2")
Tube material5-way moulded PVC
Tube connectorsMoulded nylon

Electrical safety standards

IEC601-1 IEC 60601-1 (BS EN 60601-1) IEC 60601-1-2 (BS EN 60601-1-2) VDE 0750 Teil 1
Degree of protection against electric shockClass I, type BF
Degree of protection of ingress of liquidsOrdinary
Mode of operationContinuous

* Please check with your local sales representative if the product is available for sale in your country.