Download of Respironics Actiware 5.59.0015 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Education Tools, more precisely Science Tools.
This tool was originally created by Respironics, Inc. We recommend checking the downloaded files with any free antivirus. The Respironics Actiware installer is commonly called actiware.exe or actiware_start.exe etc. The most popular version among Respironics Actiware users is 5.5.
From the developer:
Respironics Actiware is a Windows-based software applications for use by clinicians, researchers, or home care providers and designed to gather, store, manage, and view circadian rhythms and light data collected by Actiwatch devices. Data can be displayed on-screen in graphic form and on printed reports in tabular form. The software does not perform diagnosis.
You may want to check out more software, such as Actiware, Encore Pro or Sleepyhead, which might be similar to Respironics Actiware.