Med thumb betty who color 2000

Betty Who falls asleep immediately almost every night. The Australian singer-songwriter, who's gaining a reputation for churning out synth-pop hits like her breathy cover of the '90s gem "I Love You Always Forever," didn't discover a secret trick or life-changing sleep aid. She's just utterly exhausted. 

Since the March release of her sophomore album, "The Valley," Who has been on the go: She headlined her own "Party in the Valley" tour before kicking off a series of concerts that she's calling her "Beautiful Summer Pride" tour. And, without hitting pause, the newly minted New Yorker will embark on the second leg of her "Valley" tour in August. With such a busy travel schedule, Who has no problem nodding off. 

But, when she does turn to music to help her power down, Who prefers instrumentals (or a Harry Potter movie, turned down low) over songs with lyrics. For her bedtime playlist, Who chose a mix of "relaxing and transportive" songs "to ease you into slumber then maybe even take you on a journey." 

Here are six songs that Who hopes "will put even the most serious insomniac out like a light."