Hard choice, but probably this one
I also find this album calming to sleep to, minus the wails in echoes but im used to them now haha. Another "sleep album" I enjoy is Lift Your Skinny Fists Like Antennas to Heaven by Godspeed You, Black Emperor.This is off of Meddle, the First Pink Floyd album I ever bought. The first Album I ever bought, and with my own money.
Still, 40 years later, one of my favorite albums to go to sleep to!
Good Choice!
PS Currently listening to it all the way thru...