Buy Dolly Sofa Bed - Charcoal at Argos.co.uk •£314.49 Fold out bed mechanism. •Small double. •Sofa size H86, W168, D85cm. •Weight 59kg. •Size as bed: H72, W168, D225cm. •Size of sleeping area: W115, L185cm. •Floor to seat height: 46cm. •Depth of seat: 53cm. •Height of seat back: 46cm. •Width of seating area between arms: 110cm. •Height of arm rest: 58cm.