Morrissey has cancelled a concert in Spain because he didn't get enough sleep. The singer, who has become something of an expert in calling off gigs, said his latest no-show was due to the "indescribable hell" of a noisy hotel room in Valencia. "Any form of sleep or rest throughout the night was impossible due to festival noise / loud techno singing / megaphone announcements," explained a post on the Morrissey Central website. "This experience has left Morrissey in a catatonic state." Updating fans in a personal message, the former Smiths frontman said: "It will take me one year to recover. And that is an understatement." About 1,500 fans had been due to attend the show at Valencia's Palau de Les Artes Reina Sofia. The Associated Press reports that the disturbance outside Morrissey's hotel room may have been caused by celebrations taking place around Valencia's Las Fallas festival, which welcomes in the spring.…