this upscale Grozny sofa bed compared to ordinary simple sofa bed or pull-out sofa bed , sofa appearance even more atmosphere , with comfortable Simmons mattresses , and even memory foam mattress can be upgraded . Hidden under the sofa mattress is the base of the whole integrated design , completely solve the folded sofa bed mattresses spread out in the middle of the compartment edge phenomenon , eliminate discomfort during sleep , allowing guests to get back the feeling of the bed . Their design philosophy is the atmosphere of the sofa , comfortable bed , ultra- space-saving , receive guests a good helper .