RAIN - Sleep Instantly Within 5 Minutes

Sleep Instantly Within 5 Minutes with Heavy Rain & Thunder on Forest at Night
the rain starts to fall, your bed starts to call.
Rain sounds is a rhythmic ticking sound, which sounds like a wonderful lullaby that can help people fall asleep quickly.
when rain sounds enters people’s brain, brain unconsciously relaxes and produces alpha waves, which are very close to the state of brain when human sleeps.
Rain sound is generally between 0 and 20 kHz. It is not upsetting. On the contrary, this sound makes people comfortable