4 ms·

I think it would probably just be simpler to use a mattress with no springs, of which there are many on the market today.

• joezydeco 3y ago
  A 100 MHz wave is 3 meters long. What part of a bedframe/coilspring is 3 meters in length?
  • 542458 3y ago
    I’m not saying the article is right (it sounds like nonsense to me) but you do get resonance at half and quarter lengths as well.
    • pests 3y ago
      Even a quarter of three meters seems big.