Scandinavian 3-Seater Sofa Bed - Space-Saving Foldable Design with Washable Linen & Solid Wood Frame

Materials & Construction:
European beech wood legs: 100% solid hardwood with 650lbs load capacity.
Triple-layer pine plywood frame: 0.47"-0.79" thickness (stress-relieved lamination process).
OEKO-TEX certified linen-blend fabric: 40,000+ Martindale rubs, 4-5/5 pilling resistance.
Functional Design:
Convertible footprint: 20.2 sq.ft (1.88㎡) sofa → 25.8 sq.ft (2.4㎡) bed in 3 steps.
6.3" (16cm) elevated base: Full robotic vacuum access with reinforced corner joints.
Adjustable armrests: 15° tilt range for personalized lounging positions.
Comfort Engineering:
Orthopedic support system:
Seat: D30 foam (3.9lb density).
Backrest: D28 foam with lumbar contour.
Optional 1.2" natural latex upgrade.
Dual fabric options: Machine-washable linen-blend or stain-resistant technical fabric.
Durability Testing:
Frame stability: <0.3mm warp after 10,000 open/close cycles (EN 1728 compliant).
Foam integrity: 80,000 compression cycles (simulates 15-year nightly use).
UV resistance: 1,500+ hours xenon arc exposure tested.
Safety & Maintenance:
Child-friendly: Rounded edges (0.4" radius), formaldehyde-free adhesives.
Easy cleaning: Removable cushion covers with industrial-strength hook/loop.
Pet-proof: Nano-coated fabric withstands 10N scratch force (ASTM D5178).
Certifications:
GREENGUARD Gold indoor air quality certified.
FSC-certified European timber sources.