Convicted Cleveland kidnapper Ariel Castro will likely spent his prison time -- a life sentence without parole plus 1,000 years -- in isolation for as long as 23 hours a day. Castro will be isolated from the general prison population for his own safety, an Ohio prison system spokesperson said. Criminal justice experts in Ohio also said he'll likely be in a bleak, remote prison where he will only have contact with prison guards and the inmates who bring his meals. In prison, Castro will be allowed to keep a watch that only displays the time and date, and a Bible, if he wants one, NBC News reported. During his sentencing, Castro portrayed himself as a regular guy with a normal life, and blamed his addiction to porn to "sex acts" against him as a child, which then led to the kidnappings of Michelle Knight, Amanda Berry and Gina DeJesus.