Pope Francis is in a stable condition and his treatment is continuing, the Vatican has said in a statement, after he was admitted to hospital two days ago with a respiratory tract infection.
He spent the afternoon alternating between resting and reading, the statement added.
Earlier today, Pope Francis apologised for missing a mass at the Vatican, saying that he was still being treated for bronchitis and thanking his doctors for looking after him.
The pope, aged 88, was admitted to a Rome hospital on Friday with a respiratory tract infection. His doctors have ordered him to rest and he was unable to deliver his regular Sunday prayer to pilgrims in St Peter's Square.
"I would have liked to be among you but, as you know, I am here at the Gemelli Hospital because I still need some treatment for my bronchitis," Pope Francis said in a short-written version of the prayer.
"Thank you for the affection, prayer and closeness with which you are accompanying me in these days, and I would like to thank the doctors and healthcare workers in this hospital for their care," he added.
His spokesman told reporters at the Vatican that he had slept well, eaten breakfast and read some newspapers and that his treatment was continuing.
The cardinal who led mass in the absence of Pope Francis opened the service with a message of support.
"Our first thought goes to Pope Francis. We pray for his health, offering thanks for the vision and support that he always gives us," Cardinal Jose Tolentino de Mendonca said during the mass in St Peter's Basilica.
The mass was dedicated to honouring artists in the Catholic Church's Holy Year.
The cardinal's message was echoed by wellwishers at the Vatican.
Colombian pilgrim Patricia Afanador said she was disappointed not to see the pope but his health was the main concern.
"(It's sad), but it is more important that he gets better," she said. "We carry him in our heart."
The Vatican has said the pope would remain in hospital as long as necessary for his treatment.
