Is having an eggshell foam mattress (8cm thick at apex [see photo]) and a Mass Loaded Vinyl (10mm thick) enough to soundproof my DIY home studio? I really have a problem with
Cabin Comfort 1.5" Memory Foam Egg Crate Twin or Cot Camp Mattress Pad
Amazon.com: Nutan 1-inch Convoluted Egg Shell Design Mattress Topper | Orthopedic Support for Better Sleeping, Breathable and Soft Bed Toppers for Back Pain and Maintaining Proper Posture, Queen, White : Home &
Egg Crate Mattress Topper - Turmerry
Amazon.com: Vaunn Medical Egg Crate Mattress Topper, Ventilated, Convoluted Foam for Pressure Sores and Pain Relief, Medical Grade Urethane for Therapeutic Support and Recovery, Hospital Bed Twin (79" x 35") : Home