Marc Weissbluth is an American pediatrician who has written several books on infant sleep.
[1] He is a sleep disorders specialist at the Children's Memorial Hospital in Chicago.
[2] Weissbluth was born in Brooklyn, New York and graduated from Palo Alto High School in California.
His research also showed that moving the bedtime earlier significantly reduces the frequency of night awakenings in a child.
Subsequently, this term has been popularized as shorthand for a specific sleep solution called ‘extinction’.