HIMARI (around 10 cm, 100/120/140 cm widths) and SORA (around 12 cm, wool-blend) are both designed for continuous overnight sleep, and their width and support suit the main bedroom, tatami rooms, and platform rooms.
Use this answer as a buying guide before choosing between HIMARI and SORA: compare feel, thickness, storage, available size, and whether you want everyday Japanese bedding or a fuller flagship shikibuton.
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