Hey, I can believe it. I've kept Russians for a long time. They can hibernate up to seven months in the wild, and when I was starting out I once brumated one for seven months to see what would happen. It lived and went on to be a breeder, but lost weight that winter, and wasn't my best breeder. Now I brumate my adult Russians four to five months usually. Works for me and them. 
TC
>>These are my Russian and Korean rat snakes. They have both been hibernated for 3.5 months, although I have no intention of breeding them. They were hibernated simply because they stopped eating and I didn't want them to lose weight.
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>>They are finally back up to temperature at 75F... but can you believe that neither has eaten for that long ?? They retain their body weight beautifully.
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