4% of 3000 is 120 - that's a lot of studies.
You're the one claiming they're the same - where's your evidence that napping causes the effects identified as caused by meditation?
If you want to believe meditation is the same as napping, you're free to do so. As somebody with a great deal of experience in both meditation and napping, my experience is that they're completely different - meditation is not just quietly relaxing, in fact it can be extremely difficult.