Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Above the coil layer in the Purple Hybrid is a transition foam slab, and it's topped with Purple's secret sauce the GelFlex Grid.
Source: https://www.cnet.com/health/sleep/best-mattress-for-stomach-sleepers/