Yes — street benches with built-in armrests that actually prevent people from lying down do exist, and they are a common example of what urban planners call hostile architecture or defensive architecture. The armrests may look like an ordinary design choice, but in many cases they are installed specifically to break up the long, flat surface that would otherwise work as a bed.
The most recognizable version is a public bench with a central armrest placed in the middle of the seat. That single bar turns one long bench into two smaller upright sitting areas. You will also see benches with armrests spaced every two or three feet, creating divided “seats” that are too short and too segmented for most adults to stretch across. Some designs combine armrests with a sloped seat, a curved metal surface, or raised dividers, which makes lying down even more uncomfortable.
These anti-homeless benches are common at bus stops, transit stations, parks, plazas, and outside commercial buildings. They still work for sitting upright, waiting, or eating lunch, but they fail on purpose as sleeping surfaces. If you spot a bench with more armrests than a typical park bench — or a metal bar running across the middle for no obvious comfort reason — you are probably looking at defensive urban design, not just a style choice.
Part of the controversy is that these benches are rarely marketed as anti-sleeping devices. Manufacturers and city agencies often use softer language such as “anti-lounging furniture,” “vandal-resistant street furniture,” or simply “modern public seating.” Critics argue that this kind of design targets homeless people by removing one of the few sheltered places to rest, while supporters claim the benches keep public areas cleaner and make shared seating available to more people.
Some cities have removed hostile architecture after public pressure, while others continue to install it. Not every armrest is anti-homeless — some are genuinely helpful for elderly people or people with mobility issues who need support getting up. But when a bench has an unusual number of dividers, the purpose is usually clear: yes, those built-in armrests can and do prevent people from lying down.