寝椅子 is read as ねいす (neisu) and means sofa.
ねいす
neisu
ねるこはそだつ
sleep brings up a child well
ねたこをおこす
to disturb the water
いす
chair
くるまいす
wheelchair
でんどうくるまいす
electric wheelchair
かいてんいす
swivel chair
でんきいす
electric chair
くうきいす
chain of people sitting on each other's laps
あんらくいす
easy chair
こいす
small chair
こどもいす
high chair
ざいす
legless chair (used in a room with tatami flooring)