Retro baby bedding is designed to replicate a design from an earlier era. Sometimes this refers to a style of crib or bed very particular to an era (for example, wooden cribs from the 20s). Other times retro baby bedding includes a return to a thematic design that was once frequently seen on blankets, but has faded from prominence in recent years (for example, cowboys). There are many kinds of retro baby bedding available.
Often parents think back on their own childhood and the blankets they most remember are those specific to the design of that time period. Since they want their children to have a similar experience, retro baby bedding can be popular. This can bring back zoo blankets and some timeless fabric designs. Sometimes, though not always, retro baby bedding is hand-crafted and made.
As always, choose according to both your personal taste and with an eye toward the personality your child is developing. Of course, safety is just as imperative with retro baby bedding and any other kind; therefore, even cribs designed to replicate the look of the 20s are ultimately designed using modern technology meant to make them safer than those cribs.