Not that big of a deal of course if we were able to choose which software & version we use, but "updates" (sic) are forced on us (once updated, no go-backs).
DreamMapper has additional data points (on the desktop version, but NOT the mobile device version!) over SleepMapper but:
1) Opens on the wrong day (current day with zero data; most recent data is previous night of course). This issue alone makes clear Q/A testing was inadequate or skipped entirely. (An aside: Philips/Saeco has same HUGE quality control issue with its all-in-one coffee makers as well. A company shortcoming, it would appear.)
2) No more landscape mode on Android devices. The landscape mode provided a nice summary of the most recent 2 weeks, month, etc. On Android, DreamMapper only shows the most recent week, and no user-selectable additional details (as SleepMapper had).
3) All in all, SleepMapper (on Android) was a much, much better designed interface with more user selectable information. Why Philips started all over with a much weaker design is a big mystery.
Yes. There are more details than in the previous SleepMapper, but it is VERY difficult to believe this update was well thought out and executed.
Of course, SleepyHead software provides a lot of information as an alternative, but I am not aware of an Android version. (Also, the user interface is overly cluttered and as such, you are limited how large you can make fonts, etc. More separate well-designed pages with less info on each will go a long way to improve its usefulness.)