A thread of soothing podcasts where nobody talks... 
Starting with Purrcast - each episode is a different cat purring - Wilma's a real star: http://purrcast.com


Nature Radio - soundscapes of different national parks recorded by field recordists, "many of whom are park rangers"
https://natureradio.org

Screaming at the Ocean - an episode of Long Live the New Sound where a woman screams at the ocean for a minute
https://podcasts.apple.com/is/podcast/screaming-at-the-ocean/id1393853495?i=1000461737541

"A half hour of ambient sound and then at some point I make a noise... You'll forget that I'm about to make a noise and then you'll get lulled into it - then I'll make the noise and it'll be really funny" https://podcasts.apple.com/gb/podcast/harry-hills-noise/id1535626300
"No talking; just walking" https://podcasts.apple.com/gb/podcast/the-walking-podcast/id1450757852
A 30 minute long silent meeting with young Quakers in Nottingham https://www.stitcher.com/podcast/the-young-quaker-podcast/e/53427626
Slow Radio from @BBCRadio3 "Listen to the sounds of birds, mountain climbing, monks chatting as you go about your day." https://www.bbc.co.uk/programmes/p05k5bq0
Nature Track - hours of soundscapes from @jones_ann captured while making her @RadioNational podcast Off Track https://www.youtube.com/playlist?list=PLJI8aSIWm2aBD8uSDlIDr46HxJccimPcx
Or a 10 hour long soundscape of the Hoh River + more in this playlist from @michmacklem
Or Field Recordings
- if you need something long have a listen to a storm in Western Australia, a dawn chorus in Goblin Coombe or birdsong at 5am in Kerry... https://fieldrecordings.xyz
