The borderline individual functions best in a disciplined environment with consistent support from coworkers and supervisors. These individuals become bored easily, and should avoid jobs requiring repetitious acts, such as working on an assembly line. Due to the irregularity in their sleep-wake cycle, frequent shift changes are to be avoided. Some flexibility in scheduling may be needed to accommodate ongoing therapy (which normally should occur during the employee's personal time).

Source: Medical Disability Advisor

wow i saw this and was amazed...no one ever mentioned to me that possibly my sleep problems could be related to my dx of BPD... my sleep schedule usually includes , sleep an hour awake the same .. all night long most nights !