1) Slat 
• (n.) `A wooden pin stuck anciently on the sides of the bedstead, to hold the clothes from slipping on either side.`
Bed'staff` noun ; plural Bedstaves 'A wooden pin stuck anciently on the sides of the bedstead, to hold the clothes from slipping on either side.' Johnson. « Hostess, accommodate us with a bedstaff . B. Jonson. » « Say there is no virtue in cudgel...