レックスイン川崎

日本、〒210-0023 神奈川県川崎市川崎区小川町６−８

HONMONO Score

/ 100

BSolid

Heat Quality7 / 17

Cold Bath10 / 17

Outdoor Air7 / 17

Cleanliness6 / 17

Aroma & Löyly6 / 17

Sauna Focus7 / 17

Photos

Sauna

Bath

Interior

More photos

About this facility

Opened in January 2025, this is a men's-only capsule hotel and spa a 5-minute walk from JR Kawasaki Station. Its main draw is a large communal bath that, unusually for a capsule hotel, includes an open-air bath. The renovated sauna room now features loyly (water poured on hot stones), and guests praise the sharp temperature contrast with the cold mizuburo (cold plunge) for working up a solid sweat. There is also an outdoor cooling-off area and ample space to relax. Inside you'll find a manga corner with over 2,000 volumes, a restaurant, and a nap room, making it a convenient base for sightseeing or business.

Is this place the real deal?

How to get there

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Facility information

Phone: 044-211-2220
Website: https://www.rexinn.co.jp/kawasaki/
Instagram: #レックスイン川崎 posts
Google rating: ⭐ 3.6
Hours: Check on Google Maps

Health effects of sauna (research evidence)

These are peer-reviewed studies on sauna bathing in general. They are not measurements of this facility, and they are not medical advice.

❤️Cardiovascular

Sauna habits and reduced risk of heart disease, stroke, and sudden death

Association Between Sauna Bathing and Fatal Cardiovascular and All-Cause Mortality Events
Laukkanen T, Khan H, Zaccardi F, Laukkanen JA · JAMA Internal Medicine · 2015
フィンランド人男性2,315人を20年間追跡。週4-7回サウナを利用する群は週1回群と比較して心血管死亡リスクが50%低下、全死因死亡リスクも40%低下。
PubMed: 25705824 DOI: 10.1001/jamainternmed.2014.8187
Sauna bathing is associated with reduced cardiovascular mortality and improves risk prediction in men and women
Laukkanen JA, Laukkanen T, Kunutsor SK · BMC Medicine · 2018
男女1,688人の15年追跡コホート。サウナの頻度・時間と心血管死亡率の逆相関を確認。
PubMed: 30486813 DOI: 10.1186/s12916-018-1198-0

🧠Mental health

Effects on dementia, depressive symptoms, and stress resilience

Sauna bathing is inversely associated with dementia and Alzheimer's disease in middle-aged Finnish men
Laukkanen T, Kunutsor S, Kauhanen J, Laukkanen JA · Age and Ageing · 2017
週4-7回のサウナ習慣で認知症リスクが66%、アルツハイマー病リスクが65%低下。
PubMed: 27932366 DOI: 10.1093/ageing/afw212
Whole-Body Hyperthermia for the Treatment of Major Depressive Disorder: A Randomized Clinical Trial
Janssen CW, Lowry CA, Mehl MR, et al. · JAMA Psychiatry · 2016
うつ病患者を対象にした無作為化試験。1回のwhole-body hyperthermia(温熱療法)で6週間持続するうつ症状の有意な改善を確認。
PubMed: 27172277 DOI: 10.1001/jamapsychiatry.2016.1031

🛡️Immunity & inflammation

Immune activation and suppression of chronic inflammation

Cardiovascular and other health benefits of sauna bathing: A review of the evidence
Laukkanen JA, Laukkanen T, Kunutsor SK · Mayo Clinic Proceedings · 2018
サウナの抗炎症作用・血管内皮機能改善・酸化ストレス低減を包括的にレビュー。
PubMed: 30077204 DOI: 10.1016/j.mayocp.2018.04.008
Effects of sauna bathing on stress-related genes expression in athletes and non-athletes
Pilch W, Pokora I, Szyguła Z, et al. · Annals of Agricultural and Environmental Medicine · 2013
サウナによるヒートショックタンパク質(HSP72)の発現上昇を確認。免疫応答とストレス耐性の向上を示唆。
PubMed: 24364453

😴Sleep & recovery

Improved sleep quality and post-exercise recovery

Health benefits and risks of sauna bathing in patients with cardiovascular disease
Hannuksela ML, Ellahham S · American Journal of Medicine · 2001
サウナ後の副交感神経活性化と睡眠の質向上を報告。リラクゼーション効果のメカニズムを解説。
PubMed: 11479058 DOI: 10.1016/s0002-9343(01)00671-9
Post-exercise sauna bathing improves recovery from endurance exercise
Scoon GS, Hopkins WG, Mayhew S, Cotter JD · Journal of Science and Medicine in Sport · 2007
持久系アスリートを対象に、運動後サウナで血漿量増加と持久パフォーマンス向上(平均32%)を確認。
PubMed: 16877041 DOI: 10.1016/j.jsams.2006.06.009