Tree Frogs Nature Sounds. Tree Frogs: A steady chorus of croaking frogs in the near and distant trees. The night ambience and the broad tonal range of the pulsing sounds make this recording a good sleep aid - masking room and workplace noises and providing relief for sufferers of 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.