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Reportedly, Nick Bollea, wrestler Hulk Hogan‘s son is about to spend his 18th birthday – and the rest of his sentence – in an adult jail!

Bollea is serving an 8 month sentence at Florida Pinellas County jail after pleading no contents to felony charges after a horrific crash which left pal John Graziano brain damaged.

Bollea spent the first few days in solitary but was then housed with other juvies.

But with the advent of his 18th – and adulthood- upon him, Bollea will be incarcerated with the adult prisoners.

Hulk said he was concerned for his son’s mental health, claiming he was "unraveling" behind bars.

Bollea is set for release in October.