It's quite a while, but not too long-- he normally wakes up an hour or so after dawn, with enough time to have breakfast and train with Jone before he heads up to Byerly's office for work.

By the time it happens today, however, there have been enough people coming in and out of the dormitory to have pointedly noticed the suit of armor sitting crouched and still next to Benedict's bed. No one makes any trouble about it, but a chuckle does ripple through the room when he does finally awaken, and gives a loud of gasp of alarm.