The Sleep Graph is a linear progression of your sleep over the course of one night. Only Zeo allows you to see what stage of sleep you’re in and when at a given point during the night.

The color-coded segments each represent a different sleep stage: Wake is in red, Light Sleep is in gray, REM sleep is in light green, and Deep sleep is in dark green.

On the left side of the chart are the following stats:

• ZQ - Your sleep score for the night

• Total Z - the total amount of sleep you got
• Bed time - the time you went to bed at (i.e. started using Zeo)
  
• Rise time - the time you woke up
  
• Morning Feel - a numerical representation of how you felt when you woke up (the higher the number, the better you felt). This is generated when you fill out your Sleep Journal.
• Day Feel - a numerical representation of how you felt during the day (the higher the number, the better you felt). This is also generated when you fill out your Sleep Journal.
• Sleep Stealer - a numerical representation of things that negatively affected your sleep (the higher the number, the more negatively your sleep was affected). Also generated by your Sleep Journal.

Another helpful feature of the graph is that it includes a pie chart that breaks down your sleep into percentages and time increments. This is helpful because it lets you see how much total time you spent in each stage of sleep and how much each stage contributed to your total night of sleep.