London · United Kingdom

1 Hotel Mayfair

3 Berkeley Street, London

62.7NTH Retreat

Lobby entrance with hanging moss overhead, rough stone planters, a leather bench and a slatted stone wall with ivy
Courtyard King room with oak headboard, woven wardrobe, a round table by the window and potted plants on the sill
In-room water tap set into an oak wall niche below a moss panel, with a dark carafe and cup on the drip tray

Overview

Reclaimed timber, British oak and living walls, a few steps from Green Park.

Before you book

  • Smoking is allowed on balconies and terraces as long as the door to the room is closed.3 Ask for a room away from them.
  • The hotel describes its mattresses as ‘non-toxic, organic’ but does not say what they are made of or how they are certified.5
  • The red-light room is held in the Bamford Wellness Spa but listed among the hotel’s happenings, and its event page describes it as a September event,86 so check it is running when you stay.

Health features

Sleep

  • Sleep system
  • Considered bedding

Air

  • Air purifier
  • Ventilation standard
  • Smoke-free

Water

  • Filtered drinking water

Nourishment

  • Organic & local food
  • Clean minibar

Movement

  • Gym
  • Classes & studios
  • Outdoor activity

Holistic Wellness

  • Spa
  • Breathwork & meditation
  • Sauna & heat
  • Red light & PEMF
  • Longevity clinic

Materials & Setting

  • Natural finishes
  • Clean bath productspress report
  • Clean spa productspress report
  • Low-tox housekeeping
  • Green & blue space
  • Walkable

Not yet confirmed: Sleep programme · Blackout · Circadian lighting · Red light in the room · Quiet rooms · Wi-Fi-off option, and 8 more

Sources and full evidence

NTH Score

62.7

NTH Retreat

A serious wellness address with meaningful non-toxic commitments.

  • Sleep5.0 / 24
  • Air8.0 / 12
  • Water5.0 / 12
  • Nourishment4.0 / 10
  • Movement7.0 / 10
  • Holistic Wellness8.0 / 19
  • Materials & Setting10.4 / 13

Confidence A · Natural Living Seal · Calibrated so the best hotel in this edition reads 90; next review 2027-10. See every criterion

Map

3 Berkeley Street, London, London W1J 8DL

Open in Google Maps (opens Google Maps)

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