Lack of support under full weight load This characteristic is often found in low-density foam This term is very subjective, as a foam may bottom out with a heavy person, and be very comfortable to a lighter-weight individual The problem can be reduced by specifying foam with higher density and/or greater compression modulus value
reach the low point; "Prices bottomed out and started to rise again after a while"
If a trend such as a fall in prices bottoms out, it stops getting worse or decreasing, and remains at a particular level or amount. He expects the recession to bottom out = level out