A freshman congressman from Utah is trying to save $1,500 monthly on rental expenses by sleeping on his office, at least after office hours.

Representative Jason Chaffetz, R-Utah, tells CNN he gets good pay as a congressman, but if you add up other expenses and the future of his family, every amount saved is worth it.

Fortunately for Chaffetz, his office in Longworth House Building includes a bathroom, a closet that could fit his sleeping cot and a "breakfast nook" to store food.

And to keep him fit, the building is equipped with gym and a shower room.

Chaffetz said aside from saving on money, he also saves on travel time that gives him extra hours to serve his constituents more answering emails and phone calls.

House Administration Committee member Zoe Lofgren, D-Calif., warned against the practice using the office as sleeping quarters during the orientation for freshmen congressmen, as well as sleeping in the House gym.

However, there is no definite House rules prohibiting House members as well as outsiders to sleep in the office. There were reports that an estimated over 50 congressmen are doing the practice.