my mother says in the mexican ceremony Jesus was laid to sleep on Christmas eve and woken up on January 6th

Epiphany

The traditional date for the feast is January 6. However, since 1970, the celebration is held in some countries on the Sunday after January 1. Those Eastern Churches which are still following the Julian calendar observe the feast on what, according to the internationally used Gregorian calendar, is January 19,[10] because of the current 13-day difference between the Julian and Gregorian calendars.[11]

In many Western Churches, the eve of the feast is celebrated as Twelfth Night (Epiphany Eve).[12][13] The Monday after Epiphany is known as Plough Monday.[14]

https://en.wikipedia.org/wiki/Epiphany_(holiday)