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Both allow sleeping 'outdoors' without a bedroll (through the "Campcraft" section of the Radial Menu). Spent time inside a Car or a Snow Shelter.
![cabin fever symptoms cabin fever symptoms](https://bloximages.chicago2.vip.townnews.com/wcfcourier.com/content/tncms/assets/v3/editorial/0/5b/05b7eebd-764d-531e-ba96-05dbc5ba154b/05b7eebd-764d-531e-ba96-05dbc5ba154b.image.jpg)
Note: this does not apply to large transition caves that have their own loading screens, as these locations are considered "indoors" and will increase cabin fever. Spending one day out of every six inside of a cave this way will eliminate Cabin Fever risk. These give an air temperature bonus near their rear section, and with good clothing a survivor stay warm 24/7 without a fire (except during colder hours/blizzards on Interloper).
![cabin fever symptoms cabin fever symptoms](https://mommymoment.ca/wp-content/uploads/2018/12/What-is-Cabin-Fever-and-How-to-Conquer-it-pinterest-mommymoment.ca_.jpg)
The affliction first appears as "Cabin Fever Risk" if a survivor has spent more than 18.83 hours per day (averaged over the last 6 days) indoors. Cabin Fever prevents survivors from Sleeping, Passing Time or Reading indoors for 24 hours.