As someone who struggles with sleep, my sleep schedule tends to be quite erratic. Some nights I may be sleeping at 10pm, while other nights I may be sleeping at 3am. I know I should be getting 7-9 hours of sleep but I don't know when I should sleep or wake up if I'm still awake at a certain hour. That's when I started looking for sleep calculators and I came across ShutEye's one by chance. So far, it has been helpful for me and I hope it will be the same for others!