I also have two books that I am reading at the moment for the season of Advent and for a renewal of my consecration to the Blessed Virgin Mary on December 8th, the Feast of the Immaculate Conception. The first is called "Child of the Light" a small book for "walking through Advent and Christmas". It's based on various Christmas Carols and has a meditation and short prayer for each day. It's a great accompaniment to the lighting of our Advent wreath before lunch. It's published by Upper Room Books.
The second is "True Devotion to Mary" by St. Louis de Montfort. An old text from the early 18th century. As he had predicted the manuscript was lost for many years and then rediscovered by accident in 1842, by one of the priests of his congregation in St Laurent-sur-Sevre. In May 1853 a decree was pronounced in Rome declaring his writings to be free from error, and True Devotion was translated into English by Father William Faber of the Oratory in England. Since then it has never been out of print.
"Divine Wisdom, I love Thee unto folly.
I am Thy lover.
Thou alone in this world I seek,
Thou alone I desire.
I am a man gone mad with love,
Forever chasing Thee."
This I read for a few minutes before falling asleep at night. It's much better than a night cap. St. Louis says that since Jesus came to us through Mary, the best way for us to approach him is through Mary. She purifies all our intentions through her Immaculate Heart and all that she receives she gives to Jesus and keeps nothing for herself.