Incomplete Data, either on the website or on the bedside display, means that Zeo was unable to record at least 25% of your night’s sleep. This can happen especially if you’re just starting to use Zeo and you’re getting used to the headband. If you do get a night of incomplete data, don’t worry! Adjust the headband, give it a try the next night, and see if the problem resolves itself. If it doesn’t, try docking the headband, inserting the SD card, pulling out the SD card out and uploading again.