Purple's most affordable bed, the PurpleFlex Mattress, features its signature gel grid for great pressure relief, spinal ...

We tested the Nectar Classic Mattress, a mid-range foam mattress priced around $700. It stays cool and has a medium firmness ...

I measured the Big Fig Mattress's motion isolation by using a vibrometer. By measuring the vibration transfer from a 15-pound bowling ball impact across the mattress surface, I can quantify how ...

It could use some improvement if the can falls. On the other side of the bed, I place a vibrometer to measure the vibrations produced by the bowling ball and compare the readings to other mattresses.

Resonance Frequency,Aluminum Nitride,COMSOL Simulation,Finite Element Method,Residual Stress,Deformation Conditions,Doping Effect,Dynamic Displacement,Effect Of ...