I didn't see a FMD post, so I am jumping in with this link: a playlist of the 10 songs found to be the most relaxing on earth.
10. "We Can Fly," by Rue du Soleil (Café Del Mar)
9. "Canzonetta Sull'aria," by Mozart
8. "Someone Like You," by Adele
7. "Pure Shores," by All Saints
6. "Please Don't Go," by Barcelona
5. "Strawberry Swing," by Coldplay
4. "Watermark," by Enya
3. "Mellomaniac (Chill Out Mix)," by DJ Shah
2. "Electra," by Airstream
1. "Weightless," by Marconi Union
Spotify playlist