Changes

A: SleepyHead did not cause the problem; your operating system did. The operating system wrote some hidden files to the card, and the S9 does not want anything on the SD card that it did not write to the card. All versions of Mac OSX will write hidden files to an unlocked SD card. Windows 8.1 is and Windows 10 are also known to write hidden files to an unlocked SD card. To fix the problem:

'''NOTE:''' Using Rescan ResScan on a Win 8.1 or Win 10 machine will NOT prevent this problem from happening; Win 8.1 Windows will still write hidden files to an unlocked SD card and when you put the card back in the S9, the S9 will still insist on erasing the contents of the card.

=== NOTE AND WARNING for WIN 8.1 and Win 10 USERS ===Some Win 8.1 & Win10 users have reported that locking the SD card does NOT prevent their computer from writing files to the SD card. The lock switch on the SD card is a physical switch and not all SD card readers have a corresponding physical switch in them that recognizes and respects the SD card's lock switch. You can test whether your Win 8.1 machine will ignore the Lock switch by doing the following:

If the computer writes the file to the SD card, then you know that the simple fix of locking the SD card is NOT going to work on your computer and its SD card slot: The Win 8.1 and Win 10 operating system systems will continue to write those hidden system files to the SD card in spite of the card being locked.

What to do next depends on which Win 8.1 Windows operating system you have and how comfortable you are with some advanced features of the Win 8.1 operating system. Here are two things you can try:

* Try an external SD card reader plugged into a USB port. If the external SD card reader has the right kind of physical switch to detect the position of the SD card's lock tab, that should prevent Win 8.1 or Win 10 from writing the system files to the SD card.* Try following these instructions from MS about how to prevent Win 8.1 Windows from writing system files to removable media Note that these instructions specifically indicate that some of the suggestions are NOT applicable to Windows 8.1 Home edition.

A: SleepyHead 0.9.3 will work on PCs running anything from Windows XP through Windows 8.110; it will also run on Macs running OS X 10.6 and later. SleepyHead 0.9.6 may have problems running on Windows XP, Windows Vista, and Mac OS X 10.6. Future versions of SH will most likely NOT SleepyHead may not run on XP, Vista, or OS X 10.6. (NOTE: Windows XP and Mac OSX 10.6 have been completely left for dead by their creators, and users of these operating systems are running a great security risk if they use them online.) SleepyHead will also run on many flavors of Linux, but it is harder to install under Linux.

== Q: Is there a list of keyboard short cuts and mouse tricks for Sleepy HeadSleepyHead? ==A: Yes. Go to [http://www.apneaboard.com/wiki/index.php?title=Beginner%27s_Guide_to_SleepyHead#Tricks_and_Shortcuts 15. Tricks and Shortcuts]

== Q: I forgot to put my SD card back into my PAP CPAP after importing the data into Sleepy HeadSleepyHead. Have I lost my data? ==A: All modern PAPs CPAPs store the '''compliance''' data on-board and they will write that data to the SD card when the SD card is reinserted into the PAPCPAP. Some PAPs CPAPs store a fair amount of other data on-board as well as the compliance data, and all of the on-board data will be written to the SD card when you PAP. How much data you will see for the night in SleepyHead depends on both the brand of PAP CPAP you use and the version of SleepyHead you use.

* I We don't know exactly what ''F&P IcoIcon''n or ''DeVilbiss'' users will lose.

A: It depends on the kind of PAP CPAP you are using.

== Q: I've downloaded my data from a ResMed S9 Elite, AutoSet, VPAP S, or VPAP Auto, and there is no detailed data and SH SleepyHead says I didn't use the machine. What did SH SleepyHead do with my data? ==A: SleepyHead didn't do anything with your data. The most likely cause for your problem was that the card was left out of the S9 over night. (Or the card was not fully inserted.) If the SD card is not inserted into the S9 during the night, all the daily detailed data (including all the graphs) is lost; the S9 writes the detailed daily data directly to the SD card. The summary data, including the usage data, the overnight AHI, the overnight median, 95%, and maximum pressure levels, and the leak data overnight median, 95%, and maximum leak rate data, is stored in the S9's internal memory and is written back to the SD card when you re-insert the card. But SH cannot use this summary data for anything on the Daily Data page, and hence if you forget to put the SD card back into your machine, you won't get the graphs. Early versions of SH (including SH 0.9.3) cannot use the S9 summary data at all, and hence an early version of SH SleepyHead will tell you that there is no data for the day and "claim" that you did not use the machine. SH 0.6 should import the summary data into the Statistics page, although the calculated averages and percentiles using data from nights with no detailed daily data may not be mathematically accurate. The reason is that there's not enough data to accurately calculate the over night numbers if there are multiple sessions.

A: Yes, SH SleepyHead can work with some O2 monitoring devices. See <GET A REFERENCE> [[Importing CMS 50D Plus oximeter data into SleepyHead]] for details.

== Q: I'd like to post some Sleepy Head SleepyHead data to the forum, what should I do? ==A: For tips and instructions on posting SH data to the form go to [http://www.apneaboard.com/wiki/index.php?title=Beginner%27s_Guide_to_SleepyHead#Posting_SleepyHead_Graphs_to_the_Forum 14. Posting SleepyHead Graphs to the Forum]