When Max Richter's Sleep was announced back in June, it felt like a distant dream. A piece described as an 8-hour lullaby, performed live to an audience given beds instead of seats – sounds like a dream. But it happened, and it was performed live over the weekend, specifically on Saturday night through to Sunday morning, in the Reading Room at the Wellcome Centre, London.

Speaking in a press release back when it was announced, Richter said, "For me, SLEEP is an attempt to see how that space when your conscious mind is on holiday can be a place for music to live."

It broke two Guinness World Records in the process: the first for the longest broadcast of a single piece of music, the second for the longest live broadcast of a single piece of music.

Listen below for audience feedback following the mammoth performance, and listen to the whole actual thing here if you feel so inclined.

Watch our interview with Max Richter for 405tv.