Rain Shower Nature Sounds. Rain Shower: There is nothing more relaxing and calming than rain on a tin roof, water streaming down and splashing in small pools, thunder in the distance. Close your eyes and feel yourself become more and more at ease. A very good relaxation recording that also serves to mask ringing in the ears. A great soothing and relaxing sleep aid. Put on your favorite set of headphones or earbuds, sit back and relax in your recliner or sofa, and let time pass in your state of total relaxation.