Under the covers with Marina Abramović and Riccardo Tisci

Today CNN Style celebrates our one year anniversary. To mark the occasion we bring you an exclusive interview with two Style favorites -- Givenchy creative director Riccardo Tisci and performance artist Marina Abramović, in bed.

(CNN)Even creative geniuses need their shut eye, and Marina Abramović and Riccardo Tisci are no exception.

The preeminent performance artist of her generation and Givenchy's creative director snuggled up to mark CNN Style's first birthday and take us through their night time routines, and explain why, perhaps, sleep is the key to success.
"I think bed is the most intimate moment of the day," says Tisci. "Over 24 hours, night is what I love the most."
    "I love this idea of the morning," says Abramović. "I'm very interested in my dreams."
    "Dreams are something given to us, and dreams have a certain message," she argues. "In the dream if a vision comes of some work or something, I will remember it. For me the ideas have to come in a way that becomes an obsession, and then I have to be afraid of it, and say 'Oh my God, this is Hell' -- then I'm going to do it.
    "Every idea that I just like, I'm not going to do."
    Watch the video above to discover more about the secrets to slumber and success.