A similarity in the meaning of sleep quality between insomniacs, normal sleepers
Both insomnia patients and normal sleepers define sleep quality by tiredness upon waking and throughout the day, feeling rested and restored upon waking, and the number of awakenings they experienced in the night. Further, people with insomnia have more requirements for judging sleep to be of good quality, according to a study published in the March 1 issue of the journal SLEEP.