Do you have a hard time falling to sleep, taking more than an hour after going to bed?
Do you wake up in the middle of the night?
Are you under constant stress?
Have you felt sleepy during the day recently?
Have you been feeling exhausted and drowsy from lack of sleep?
Do you have a feeling that you haven't sleet well enough?
Have you been inactive recently without regular exercises?
Are you sleeping with the lights on or in a bright room?
Are you sleeping in a noisy environment?
Are you sleeping in uncomfortable bed and bedclothes?