So when you're testing crib mattress firmness, feel free to put pressure on the mattress to make sure it resists the impression of your hand. (lullabyearth.com)
A new standard is being introduced to address the association between mattress firmness and the risk of SUDI / SIDS. (philandteds.com)
No more compromising on mattress firmness or comfort, no more buyer's remorse, and no more worries over one of the most important purchasing choices you'll ever make — your bed. (personalcomfortbed.com)