Elizabeth Holmes, the infamous founder of Theranos, has begun serving her 11-year prison sentence this week, joining the ranks of notable inmates at the Federal Prison Camp in Bryan, Texas, including Real Housewives of Salt Lake City's Jen Shah. This information was confirmed by RadarOnline.com.

Holmes, 39, checked into the prison on Tuesday, marking the start of her sentence for her January 2022 conviction on four charges of wire fraud and conspiracy to commit the same.

Known informally as "Club Fed", this prison has gained notoriety as one of the most comfortable detention facilities in the country, housing a number of prominent figures from the business world.

Reality star Jen Shah had been serving a six-and-a-half-year sentence for wire fraud linked to a telemarketing scam that targeted seniors and other vulnerable individuals since February. "Club Fed" is also home to Jenna Ryan, a participant in the January 6 Capitol riot, and Hot Pockets heiress Michelle Janavs, convicted of bribery.

A source familiar with the prison described the living conditions as similar to a college dormitory, with inmates sharing four-person rooms equipped with bunk beds. The facility provides an array of recreational activities, including crocheting clothing items that prisoners can allegedly sell for $1.30.

The prison's handbook details the daily routine, with inmates waking up at 6 AM every morning. Discipline is strictly enforced for late risers or those who don't keep their quarters clean. The unit that maintains the best cleanliness rating gets the privilege of dining first each day.

Although the prison is a staggering 1,800 miles away from Holmes' $9 million residence and her family in San Diego, one insider described "Club Fed" as "heaven" compared to other detention centers, citing its lack of traditional prison barriers such as walls, bars, and fences.

Holmes, convicted of defrauding Theranos investors out of hundreds of millions of dollars, was handed down an 11-year sentence in November 2022. The start of her prison term was initially slated for April 27, but a last-minute legal strategy allowed her to postpone it by over a month.