Firmer 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.
Fibre Fillings fillings are 100% polyester, man made, very durable, great recovery.
Source 5 Domestic Flammability Rated BS 7177 Medium Hazard, Hotels, Universities, Holiday Camps, Retirement Homes.
Mattress Depth 27 cm
Handles Attached to the border, aiding rotation and turning of the mattress.