Hi, I’m looking for some help on the Sleep Debt project in the Learn JavaScript course (https://www.codecademy.com/courses/introduction-to-javascript/projects/sleep-debt-calculator).
I’ve finished the exercise and it works, which I’m very happy with because I struggled like mad with the ‘Rock, paper, scissors’ exercise 
But as well as my intended output (one of three console.log() statements depending on the figures) I also get ‘undefined’ showing up in the console. I’ve looked through my code but I can’t find the problem, can anyone help?
Here’s the code:
//Totaling up actual sleep hours for the week
const getActualSleepHours = () => 6.5 + 7 + 2.5 + 4.5 + 10 + 7 + 7;
//Calculating ideal sleep hours for the week
const getIdealSleepHours = idealHours => idealHours * 7;
//Calculating difference between actual hours and ideal hours for the week
const calculateSleepDebt = () => {
let actualSleepHours = getActualSleepHours();
let idealSleepHours = getIdealSleepHours(7);
if (actualSleepHours === idealSleepHours) {
console.log('Great, you got the perfect amount of sleep this week!');
} else if (actualSleepHours > idealSleepHours) {
console.log(`You got ${actualSleepHours - idealSleepHours} hours more than you needed this week. Set that alarm earlier you lazy sod!`);
} else {
console.log(`You could have done with ${idealSleepHours - actualSleepHours} hours more sleep this week. Go and make a brew, and get an early night tonight.`)
}
}
console.log(calculateSleepDebt());