I tried Amazon's popular Big Red Rooster machine, a white noise machine for people who can't sleep. The sleep machine has over 22,000 five-star ratings, and this is my personal review.
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Soothing rain & thunder for deep relaxation | Calming nature sounds for sleep, meditation & stress relief
Experience deep relaxation with this immersive rain and thunder soundscape from BuddhaTribe, part of Meditation Relax Club.
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