Amazon.co.jp: Kotatsu Futon, Kotatsu Futon Mattress, Made in Japan, Japanese Pattern, Beige, "Shiori", High Heat Retention, Volume, Flannel, Fluffy, Beige, Approx. 80.7 x 80.7 inches (205 x 205 cm) : Home & Kitchen
Little Folks Fargo High Sleeper Loft Bed With Futon & Storage Desk -av – Nubie Kids
Amazon.co.jp: Nishikawa Sangyo Nishikawa Tokyo High Resilience Bed Futon, Festa 2, Double 3.5 x 55.1 x 78.7 inches (90 x 1400 x 2,000 mm), Hard Body Pressure Dispersion, Beige [BE] : Home & Kitchen