Overview
A Nikko Hotels tower by Union Square, with a glass-enclosed pool and a hot-cold circuit.
Before you book
- The FAQs say the hotel is completely smoke-free, but the rooms page places a smoking area on the fifth-floor outdoor terrace.24
- Dogs of 50 lb or less are welcome for a nightly fee, and there is a pet terrace on the fifth floor.3 If you are allergic, ask for a room that has not recently hosted one.
- Access to the pool and wellness centre is part of a nightly amenity fee.5
Health features
Sleep
- Sleep programme
Air
- Smoke-free
Movement
- Gym
- Swimming
Holistic Wellness
- Sauna & heat
- Cold plunge & cold therapy
Not yet confirmed: Sleep system · Considered bedding · Blackout · Circadian lighting · Red light in the room · Quiet rooms, and 24 more
NTH Score
14.6
NTH Observed
Listed and watched. Not yet badged.
Confidence C · Calibrated so the best hotel in this edition reads 90; next review 2027-10. See every criterion
Map
222 Mason Street, San Francisco, CA 94102
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