The song was born out of a period of deep mental and physical exhaustion during the Beatles' famous meditation retreat in Rishikesh, India [16]. While the band was there to find inner peace through Transcendental Meditation, Lennon found himself plagued by insomnia [7]. The lyrics reflect his restless state:
The enhanced fidelity of the "muttering" at the end of the song, which fueled years of "Paul is Dead" conspiracies [2]. I'm So Tired (Remastered 2009)
The 2009 remaster is part of a larger effort to preserve the Beatles' catalog using modern technology to "make the old new" [12]. On this specific track, the remastering process highlights: The song was born out of a period