This articulated base offers great durability and elasticity combined with an innovative design with 5 independent articulation planes and lumbar support that guarantees excellent mattress support along its entire length. WHY BUY A SOMIFLEX A4 ELECTRIC ARTICULATED BASE? Great stability thanks to its double metal frame with a rounded steel tube in a 50x16mm profile. Bed base with 11 rows of slats (12 along the 200cm length) and 5 articulation planes and firmness adjustment, through its tensioners. This articulated base offers great durability and elasticity combined with an innovative design with 5 independent articulation planes and lumbar support that guarantees excellent mattress support along its entire length