"Sundown Syndrome" was written by Kevin Parker in the key of E major in a mostly 68 time signature.

[1] The song begins in 44 with the two above mentioned chords, while the drums are loose and jazzy and have flange added to them.

A kazoo then comes in, which some people mistook for a fuzz guitar, to play a solo in the E major scale over the same F♯m7, G♯m7 chord progression.

After a few bars of the guitar on its own, the chorus vocals come back over the top with occasional quiet bass fills.

[2] Both "Sundown Syndrome" and "Remember Me" were recorded at Toe Rag Studios in London, UK with Liam Watson in March 2009.

"[4] "Sundown Syndrome" was later featured on the soundtrack for 2010 film The Kids Are All Right[5] and was also included on the Ministry of Sound compilation album Chillout Sessions XII.

[11] In 2010, Tame Impala incorporated a quiet outro where Parker loops his vocals and experiments with effects while Dominic Simper plays synth chords.