![Issues with my Sleep Debt Calculator code shows 'NaN' for 'calculateSleepDebt' - JavaScript - Codecademy Forums Issues with my Sleep Debt Calculator code shows 'NaN' for 'calculateSleepDebt' - JavaScript - Codecademy Forums](https://global.discourse-cdn.com/codecademy/original/5X/4/d/9/c/4d9c1507d697e91ca9ebbc80dba7e0df6f064047.png)
Issues with my Sleep Debt Calculator code shows 'NaN' for 'calculateSleepDebt' - JavaScript - Codecademy Forums
![This 'sleep calculator' will tell you exactly when to go to bed for the perfect night's sleep | For The Win This 'sleep calculator' will tell you exactly when to go to bed for the perfect night's sleep | For The Win](https://ftw.usatoday.com/wp-content/uploads/sites/90/2017/06/sleep.jpg?w=1024&h=576&crop=1)
This 'sleep calculator' will tell you exactly when to go to bed for the perfect night's sleep | For The Win
![Sleep Calculator - How to Calculate Time You Should Go to Sleep | Sleep calculator, Sleep cycle calculator, Track sleep Sleep Calculator - How to Calculate Time You Should Go to Sleep | Sleep calculator, Sleep cycle calculator, Track sleep](https://i.pinimg.com/474x/2d/11/19/2d111928bcc3dd1433600ae762476267.jpg)
Sleep Calculator - How to Calculate Time You Should Go to Sleep | Sleep calculator, Sleep cycle calculator, Track sleep
![Sleep calculator tells you what time you should be in bed | Sleep calculator, Sleep cycle chart, Sleep cycle calculator Sleep calculator tells you what time you should be in bed | Sleep calculator, Sleep cycle chart, Sleep cycle calculator](https://i.pinimg.com/originals/b8/c8/27/b8c827a018662d2a5313dd4a6532ded7.jpg)