Kakeru is the verb meaning to lay on top - thus Kakebuton refers to a blanket.

EMOOR Japanese Futon Comforter Cover PRESSO Twin (Beige), Zipper-Closure, Made in Japan 100% Cotton Kakebuton Tatami Floor Sleeping Bed Linen
4.0
Amazon.co.uk

ACRALI HOME Mattress Topper Single Bed 4 Inch Thick - Quilted Single Mattress Topper made with Fluffy Hypoallergenic Microfibre with Strong Corner Straps for...
4.0
Amazon.co.uk

FULI Japanese Traditional Shiki Futon (shikibuton) High Grade Floor Mattress, 39" x 75" Single. Made in Japan
5.0
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