YouTube videos featuring hours of rain falling on tents have quietly amassed enormous audiences. One upload, “Thunderstorm & Rain On Tent Sounds For Sleeping,” has surpassed 21 million views. Another, ...

Camping in a tent when it's raining can be peaceful, but it can also be a pain trying to keep the water from getting in and soaking up your belongings. But what if you lived in a tent all of the time?