 'Don't Sleep in the Subway' peaked at #5 on the US charts in July 1967, becoming Clark's final US Top Ten single and was also, for three consecutive weeks, the second of her two #1 hits on the "Billboard" Easy Listening chart, following the 1966 release of 'I Couldn't Live Without Your Love'.In the UK where her precedent single 'This Is My Song' had afforded Clark her best chart showing with two weeks at #1 'Don't Sleep in the Subway' had a July 1967 chart peak of #12, evincing a decline in Clark's UK chart profile which would continue until Clark made her last UK Top 40 appearance with a new recording, 'Song of My Life' which peaked at #32 in March 1971.