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Why do Japanese people sleep on the floor?
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Amazon.com: MAXYOYO Cooling Floor Mattress Japanese Futon Mattress for Hot Sleepers, Cooling Mattress Pad Portable Camping Mattress Roll Up Mattress for Summer, Breathable Mesh, Cool Sleep, Charcoal Black, Queen : Home &
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Why People in Japan Sleep on the Floor and 5 Reasons to Give It a Try / Bright Side
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