Plunge

Plunge is a California company, Reboot Labs LLC, that started with home cold plunge tubs and now also makes saunas. It is based in Roseville, California.

In this category it sells cold plunges with chillers, from a fold-away fabric tub and an inflatable tub to rigid upright and lay-down tubs and an all-in-one unit, plus traditional cedar saunas with electric stone heaters and indoor infrared cabins.

It sells direct through its own US store at plunge.com, with app control across its range, freight delivery for tubs and saunas, and optional paid assembly.