App to guide you to establish a good bedtime routine

So many of us are always late to bed, and i want to make an app to help people establish a good sleep routine. What you do is you make sort of a 'race' between habits that you need to do before bed. For example, you set a race at 10pm to 11pm and you put in 3 races: taking a warm bath, brushing your teeth, drinking tea, etc. If you finish all the races (habits) in the timeframe, the next day you get a 10% discount on a store you bought things before. In a week, the discount will be 70% off your next purchase. This way, you don't only get better sleep, but you also save money on your next purchase. The goal is to make a habit out of these things and establish a good sleep routine.