Medium Firm is the level of support to the body, suitable for average to heavily weighted people. This is not a comfort rating.
Open Coil are Bonnel springs in an hourglass shape, joined creating an open coiled mattress.
Mattress Depth 22 cm
Down An outstanding luxurious natural filling. The finest, softest feathers found close the body.
Two Sided Two sleeping sides, turn and rotate frequently.
Source 2 Domestic Flamability Rated Source 2 for Low Hazard, General Domestic use