• 25001 Yukinoshita white
  • 25001 Yukinoshita white
  • 25002 Kinari Ecru
  • 25002 Kinari Ecru
  • 25003 Wild Sakura
  • 25003 Wild Sakura
  • 25004 Aitetsu Iron Blue
  • 25004 Aitetsu Iron Blue
  • 25005 Uguisucha Brown
  • 25005 Uguisucha Brown
  • 25006 Hainezu Gray
  • 25006 Hainezu Gray
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Futon Mattress Cover Iwamoto Senni Kyo Hanna Linen

Futon Mattress Cover Iwamoto Senni Kyo Hanna Linen

Iwamoto 25000 Color
Mattress Cover Size
$194.00 USD
$194.00 USD
Sale Sold out

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Made to Order | Current production time: about 2 weeks

This item is made after your order is confirmed.
Production time may vary depending on the season.

Features

This item is a cover for a futon mattress. It does not contain any cotton filling. Please make sure you are ordering the correct item.

Fabric - 100% linen woven with fine 60-count yarn

Opening - Wide side zipper for easy insertion and removal of the futon mattress. The cover fully encloses the futon mattress.

The fabric has a light, refined texture with the natural breathability and dry touch of linen. A special finishing process gives it an unusually soft and relaxed feel.

  • 100% linen
  • Fine 60-count yarn
  • Plain weave
  • Thread count: 114
  • Breathable and comfortable
  • Soft, relaxed texture

Yukinoshita (No. 25001) and Ecru (No. 25002) are undyed.

Because linen is made from flax, its natural color can vary slightly from year to year depending on growing conditions. Subtle color differences are a natural characteristic of the material.


 

Size Information

For our Futon Mattresses (Shikifutons) and Toppers, choose the cover with the same size name. For example, a Single cover fits both our Single Futon Mattress and Single Topper.

Our covers are made approximately 5 cm (2.0 in) larger in both length and width than the corresponding Futon Mattress (Shikifuton) fabric size. This makes the futon easier to insert and allows for possible shrinkage after washing.

As size names can vary by country, please check the measurements below before ordering.

US Full is available for selected covers only.

How to Choose the Right Cover Size

Measure the circumference of your futon in both directions, as shown in the diagram.

  • Length: circumference ÷ 2 + 5 cm / 2 in
  • Width: circumference ÷ 2 + 5 cm / 2 in

The results will be the recommended cover length and width.

Example:

Length circumference: 400 cm / 157.5 in
→ Recommended cover length: 205 cm / 80.7 in

Width circumference: 200 cm / 78.7 in
→ Recommended cover width: 105 cm / 41.3 in

Recommended cover size: 205 × 105 cm / 80.7 × 41.3 in

Our covers are designed for relatively flat Japanese futons and may not fit standard bed mattresses thicker than 10 cm / 4 in.

If you are unsure which size to choose, please contact us before ordering.

About Iwamoto Senni

Founded in 1948, Iwamoto Senni is a Japanese maker of bedding and sleepwear, including futon covers and pajamas.

The company operates its own sewing factories in Kyoto and Shiga, handling each step from fabric development and design to cutting, sewing, and shipping.

Rather than keeping finished products in stock, each item is made after an order is placed. From covers for traditional inns to sleepwear for individual customers, every piece is carefully made in Japan with comfort and everyday use in mind.

How It’s Made

This product carries the registered NIPPON LINEN trademark (Teikoku Sen-I Co., Ltd.), certifying that it is made from French linen and that all weaving, dyeing, and finishing processes are carried out in Japan.

Kyo Hanna Linen is finished using a Cool Crush process, in which the fabric is gently worked to loosen the fibers and create a softer, fuller texture while preserving the natural character of linen.

Most colors are produced using a natural over-dyeing process. Instead of bleaching the fabric before dyeing, the dye is applied over the linen’s original natural color. This creates deeper, more nuanced shades and allows the character of the raw flax to remain visible.

Because the base color of natural linen varies slightly depending on the flax harvest, each dye lot may also vary subtly in tone. These natural variations are part of the character of the fabric.

Care Instructions

  • Close the zipper and place the cover in a laundry net before washing.
  • Machine wash on a gentle cycle at 30°C (86°F) or below.
  • Do not use bleach.
  • Do not tumble dry.
  • Reshape while damp and line dry in the shade.
  • Iron at a low temperature if needed.
  • Wash dark colors separately from light-colored items, especially for the first few washes.
  • Professional dry cleaning and wet cleaning are also permitted.
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  • 4 stars: 0 (0%)
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H
H from the U.S.
No title

Best purchase I've ever made I can sleep more, my cat and I love this item so much Feel the love when you open them, you can charge your energy when you sleep, such a great quality hand made item ✨ I'm Japanese, I been sleeping with futon for my entire life ( also mattress too ) This item bring you different world of sleep ✨ If you wanna experience the Japanese art of sleep, you should get them ❤️

H from the U.S. review photo