Woods will make his comeback next week at his own tournament in the Albany, Bahamas after nearly a year on the sidelines.
The former world number one, who had his fourth back operation in the past three years, hasn’t played since the Dubai Desert Classic in January.
Although the 41-year-old has had a catalogue of injury problems, Day, a fellow former number one sympathises.
And Day, speaking ahead of the Australian Open, revealed his chat with Woods.
He said: “I did talk to him and he did say it’s the best he’s ever felt in three years, he doesn’t wake up with pain anymore, which is great.
“I totally understand where he’s coming from because sometimes I wake up and it takes me about 10 minutes to get out of bed.
“For him to be in pain for three years is very frustrating.”
Day also believes the Hero Challenge will provide the perfect platform for Woods’ comeback.
He added: “With regards to him playing next week, there’s no pressure.
“It’s an 18-man field, there’s no cut … it’s obviously a tournament that suits him, that he likes.
“He says he’s ready and I’m hoping he is.
“From what he says, he’s been hitting it long and if he is hitting it long and straight, it’s going to be tough for us.”
