The Contrast Lab
Sauna and cold plunge work best together. Build your own contrast protocol below, browse real DIY build logs, and see what the research actually shows.
Build Your Protocol
Set your sauna and plunge targets, then run the timer. Nothing here is medical advice — start conservative and adjust to how your body responds.
Curated Protocols
Beginner Contrast Protocol
A conservative starting point: moderate sauna heat, short and mild plunge, only two rounds. Build from here over several weeks.
Standard Recovery Protocol
A common middle-ground protocol for general post-exercise recovery use.
Athlete Recovery Protocol
Longer and more intense sessions aimed at experienced users with an established cold tolerance.
Evening Wind-Down Protocol
A gentler evening version intended as a wind-down routine rather than a high-intensity session.
Real Build Logs
Cost breakdowns, timelines, and photos from real backyard builds — submitted by owners, not brands.
My $2,400 Backyard Barrel Sauna Build
plungeConverting a Stock Tank Into a Cold Plunge for Under $400
comboBackyard Contrast Corner — Barrel Sauna + Ice Barrel
The Science of Contrast
[SAMPLE — replace with a real citation] Heat and Cold Exposure Effects on Sleep Onset
This is a placeholder entry demonstrating the science index layout. Replace with a verified, published study before this page goes live.
Evidence: preliminary[SAMPLE — replace with a real citation] Alternating Heat and Cold Exposure on Mood
This is a placeholder entry demonstrating the science index layout. Replace with a verified, published study before this page goes live.
Evidence: preliminary