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Out of stock at Monk when we last checked ().

Monk Cocoon + Shiver Pro

Tub plus chiller bundle by Monk. UK price £4,290. Not tested by us

Monk Cocoon + Shiver Pro, tub plus chiller bundle
Image: Monk

Specifications

Type
Tub plus chiller bundle
Capacity
approx. 480 L (estimated)
Includes chiller
Yes
Minimum temperature
3C
Heating
Yes
Material
Not stated
Insulation
Not stated
Chiller capacity
Not stated
Dimensions
1235 x 715 x 845 mm
Weight (empty)
Not stated
Voltage
Not stated
Filtration
Ozone + 2-stage
Outdoor use
Yes
App control
Yes
Warranty
2 years
Ships to UK
Yes

Figures marked "estimated" are ours, worked out from the dimensions the manufacturer publishes, because the maker does not state them; see how we check the data. The manufacturer's own figure replaces ours as soon as it is published.

Price and where to buy

£4,290
UK retail price at last check, .

Check price at Monk

What owners say

  • Monk scores 4.2 out of 5 on Trustpilot from 28 reviews; 2 of the newest 15 were 1 or 2 stars (brand-wide, checked ).

Price history

Unchanged at £4,290 since , across 5 checks of Monk's own store.

Our take

The Monk Cocoon + Shiver Pro is a tub plus chiller bundle sold in the UK at £4,290.

Key specifications: roughly 480 litres of water by our estimate from its stated dimensions (the maker does not publish a capacity), a built-in chiller, a minimum water temperature of 3C, heating for contrast therapy.

The warranty is 2 years.

Its UK price has held steady across the 5 checks in our price history.

We have not tested this unit ourselves; the take below is built from the maker's specifications, the UK price and what owners report.

What to buy with it

  • The chiller is the running cost; a plug-in meter shows what it draws in your garden, not in the brochure. MECHEER plug-in energy monitor (£11.88 at Amazon UK, 4.5 stars from 5,400 ratings)
  • The display tells you the temperature at the chiller's inlet. A thermometer floating in the tub tells you what you are actually sitting in. Intex floating pool thermometer (£7.49 at Amazon UK, 4.4 stars from 4,444 ratings)

Lids, filters, water care and what not to buy: our cold plunge accessories guide.

Compare with alternatives

Notes from the manufacturer page: Shiver Pro: 585 x 435 x 535 mm, 43 kg, heats to 40C Specifications verified 2026-09-08.

Cold water immersion places real stress on the heart and circulation. Anyone with a cardiovascular condition, high blood pressure, a history of arrhythmia, or who is pregnant should speak to a doctor before using a cold plunge. Never plunge alone. Start with short sessions at mild temperatures and progress gradually. Read the full safety guide.

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