Best onsen for Insomnia in Gunma

8 picks ranked from onsen analysis-sheet data (official, verified and free-flowing sources prioritised)

Try your own diagnosis
Oyado Tamaki Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Oyado Tamaki
お宿 玉樹
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanPrivate Rental BathRoom with Open-air BathTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

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PRIncludes affiliate links
Oedo Onsen Monogatari Premium Ikaho Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Oedo Onsen Monogatari Premium Ikaho
大江戸温泉物語Premium 伊香保
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanTattoo OK (public bath)
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Ishidan no Yu Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Ishidan no Yu
石段の湯
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Day-use Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Hotel Tenbo Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Hotel Tenbo
ホテル天坊
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Kounkaku Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Kounkaku
香雲館
Gunma Shibukawa· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Kishigon Tatsu No Yu Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Kishigon Tatsu No Yu
岸権 辰の湯
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Moriaki Ryokan Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Moriaki Ryokan
森秋旅館
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)Ikaho Onsen
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanPrivate Rental Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links
Ikaho Onsen Hotel Kogoro Sulphate Spring
Sulphate SpringCarbonated SpringChloride SpringInfo pending
Ikaho Onsen Hotel Kogoro
伊香保温泉 ホテル木暮
Gunma 渋川市· 伊香保温泉 総合湯(黄金の湯)
Golden Waters of Ikaho

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Onsen RyokanPrivate Rental BathRoom with Open-air Bath
StimulationBactericidalSkin BeautyHeat RetentionRelaxation
pHNeutral6.4
0714
TEMP41.2℃
0℃50℃100℃
KEY MINERALS

A natural moisturizer also used in skincare lotions. Forms a thin veil on the skin to reduce moisture loss after bathing.

A trace component with gentle antibacterial and anti-inflammatory action.

Softens dead skin cells for a silky bathing feel.

Check Availability & Rates
PRIncludes affiliate links

Choose a ryokan in Gunma

Why onsen are considered good for Insomnia

The benefits of an onsen vary by spring type. Certain spring types are traditionally considered good for Insomnia, and the corresponding indications are listed in the legally required onsen analysis sheets. my Onsen Techo ranks the onsen best suited to your symptom and area based on analysis-sheet data, which is mandated for display under Article 18 of Japan's Hot Spring Act. Each onsen page shows mineral visualisations, bathing tips and booking options.