Tried Withings Sleep for the first time last night, and the sleep pattern readings seem to work fine as the Health Mate app showed the result immediately after I got out of bed.
I created an IFTTT applet to email the last sleep data when Withings Sleep is ready for export. However, the applet never ran meaning that no notification was generated from Withings Sleep.
I have browsed through the forum to look for solution, but could not find an answer to this problem. Perhaps the notification server for Withings server isn't properly working at this moment. This is quite frustrating as there is not much can be done for troubleshooting. Should I wait for a few more days until Sleep starts to measure regularity?