Pope Emeritus Benedict XVI is "lucid and vigilant," the Vatican said Thursday, but still remains in serious condition.
Vatican spokesperson Matteo Bruni said that Benedict "managed to rest well last night" and that his health "is stable at the moment."
Benedict, 95, has been receiving medical care after the Holy See announced Wednesday that his health had suddenly "worsened."
In 2013, Benedict became the first pope in more than 600 years to resign, citing his age and declining strength.
The ex-pope has been living in the Vatican since he stepped down, and has relatively remained out of the public eye.