Electric wood slat mattress frame, available in twin and full size versions, with a wood structure. Independent supports fixed to double beech plywood slats create an anatomic system that continually follows the movements of the body. The rigidity adjustments in the lumbar area can be used to model the level of support to specific needs. The motorised frame functions also in the event of a loss of electrical power thanks to the emergency battery that returns the bed to its level position.