Set desired time of wakeup or bedtime
Switch to bedtime
Want to go to sleep at given hour?  Check!
Cycle length - in min
How long is your one sleep cycle? (Varies from 80 to 120min)
Quantity of cycles
Number of cycles you want to display (max 10)
After which cycles you feel the best?
Show only golden
Show only cycles specified in golden hours, ignore displaying rest