BetterRest

In order to output your ideal bedtime, please input your desired wake up time, sleep time, and coffee consumption to calculate it using the Core ML implementation.

Demo

Notes

Under the hood:

This function allows the app to calculate a bedtime using the SleepCalculator class (CoreML implementation), it is then formatted to HH:MM and returned as a String

    func calculateBedtime() -> String {
        let components = Calendar.current.dateComponents([.hour, .minute], from: wakeUp)
        let hour = (components.hour ?? 0) * 60 * 60
        let minute = (components.minute ?? 0) * 60
        
        do {
            let model: SleepCalculator = try SleepCalculator(configuration: .init())
            let prediction = try model.prediction(wake: Double(hour + minute), 
            estimatedSleep: sleepAmount, coffee: Double(coffeeAmount))
           
            let formatter = DateFormatter()
            formatter.timeStyle = .short
            
            return formatter.string(from: sleepTime)
        } catch {
            return "Please try again..."
        }
    }

Credit

Check out this project at Hacking with Swift