Bed slats can shift and fall if they are not securely attached. This might happen because slats are not properly spaced and the weight is distributed unevenly, which causes unequal amounts of pressure that cause slats to shift and fall. \
Slats may also be worn out. The wood can weaken and change shape over time, which may cause the slats to loosen and put them at risk for falling. \
If slats are not securely attached to the bedframe, they may fall out. \