Here´s a good one… NapSounds. Napsounds is a simple website that offers a selection of sleep-inducive sounds to help you relax and take a power nap. Choose “Electronic”, “Classical” or “Nature” to play a free 20 minute sound track for your nap.
This is how they explain it:
Neuro-Linguistic Programming is used in the text, binaural beats induce relaxation state and a smooth overall mix enables you to relax quickly and efficiently with beautiful, energizing, free electronic sounds.
Does it work? Who knows. But they do make a good case for getting horizontal after lunch break.