Short answer: Brumation is a winter slow-down: a healthy bearded dragon becomes sluggish, stops eating, stops pooping and may darken. Wild dragons do it in the Australian winter, May to August. Indoors it is rarer, so have a reptile vet check your dragon first: lethargy and refusing food in a normal 60–70°F home point to illness more often than brumation.
Written from the cited care and veterinary sources below. No AI-written care advice.
Signs of brumation
- Lethargy and long sleeps, often in a hide
- Refusing food
- Little or no pooping
- Darker skin
Brumation or illness?
More likely brumation if it is a healthy adult with a recent vet check, the house has stayed below about 60°F for several days, and it is the cooler season.
More likely illness if the dragon lives indoors at a normal 60–70°F and becomes lethargic or stops eating. See a reptile vet rather than assuming brumation.
Before you let it happen
- Get a vet check, including a fecal test for parasites.
- Keep fresh water available.
- Weigh the dragon now and regularly; weight loss is a reason to call the vet.
Questions
When do bearded dragons brumate?
Wild bearded dragons brumate in the Australian winter, May to August, when days are 68–72°F and nights 40–44°F. Indoors it can start if the house stays below about 60°F for several days.
Should I let my bearded dragon brumate?
Only a healthy dragon. Get a check-up from a reptile vet first; a dragon with parasites or a poor diet can wake up critically ill.
Sources
- VCA Animal Hospitals: Brumation in bearded dragons
- Chewy: How long can a bearded dragon go without food? (vet reviewed)
General information, not veterinary advice. To find a reptile vet, use the ARAV directory. Updated November 9, 2026.