Medium is the level of support to the body, suitable for all average weighted people. This is not a comfort rating.
Open Coil are Bonnel springs in an hourglass shape, joined creating an open coiled mattress.
15mm Of Memory Foam is body moulding and pressure relieving, a filling that always recovers to its original state, ultimate comfort.
Micro Quilted A finish to the mattress created by stitching together the fabric and fillings, creating a patterned comfort quilt layer.
One Sided mattress, no need to turn this mattress, but rotation is recommended.
Source 2 Domestic Flamability Rated Source 2 for Low Hazard, General Domestic use