Sanitarium dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Stearn Robinson - Tom Corbett
A dream of being a patient in a sanitarium is telling you to take better care of your health, but a dream of visiting someone else there suggests you are worrying needlessly.
In either case a medical checkup is likely to prove beneficial.
Source: The Complete Guide to Interpreting Your Dreams • Author: Stearn Robinson - Tom Corbett