"This bed looks like a big Coffin? The Sonic Bed by Kaffe Matthews. It also includes a loudspeakers and subwoofers, Cool! Under the mattress of Sonic Bed there lies a network of loudspeakers including six very large subwoofers that produce very low frequencies that penetrate the body. The deeply sensuous immersion of Matthews' Sonic Bed offers a trance-like corporeal, audio experience that transcends current visual-aesthetic frameworks. I just want to say, "You can sleep like 'dead'."" source