May tinh giac ngu
Tinh toan thoi gian di ngu va thuc day toi uu dua tren chu ky giac ngu tu nhien 90 phut. Giac ngu nhe nhat giua cac chu ky – thoi diem ly tuong de thuc day.
Tinh tu thoi gian hien tai
15 phut duoc cong them cho viec chim vao giac ngu.
Enter = Tinh ngay
Khuyen nghi
Thoi gian
Chu ky
Thoi luong giac ngu