The Colgate Classica 1 Mattress by Colgate by Colgate is the #1 Rated Baby Crib Mattress. The Colgate Classica 1 Mattress by Colgate is probably the most popular name crib mattress on the market today thanks to its high evaluations by the authors of the Baby Bargains Book and many leading consumer and industry magazines. Top quality foam, extra firmness, light weight, reasonable price and, tons of great comments from consumers that have bought and used this mattress for one to four of their kids have made this mattress a winner for babies and parents and Colgate. This mattress utilizes a 1.5/60c. The Colgate Classica 1 Mattress by Colgate has set the standard by which all foam crib mattresses are judged in the industry. The highest rated mattress contains many unique features including an anti-dust vinyl cover, square corners for a more snug fit in the crib, and is light weight.