The present invention relates to device for attaching at least one slat of a slatted base to a frame of the slatted base, the device comprising a first member (2) arranged to be attached to the inner side of the frame of the slatted base and comprising first connecting means (5'); a second member (1) comprising a top portion (1'') arranged to engage an extremity of at least one slat of the slatted base, a base portion (1') connected to the top portion by means of at least one resilient member (4), and second connecting means (5) arranged to cooperate with the first connecting means (5') so as to allow connecting the first member (2) to the second (1) member in a plurality of relative positions with respect to each other in view of adjusting the position of the at least one slat with respect to the frame of the slatted base. The resilient member (4) and second connecting means (5) are disposed with respect to each other on the second member (1) in such a way that when compressing the resilient member (4), the top portion (1'') of the second member (1) is displaceable with respect to the frame in the height adjustment direction of the least one slat, to the level of the second connecting means (5). Therefore, for a given compression amplitude of the resilient member, the height of said second member can be reduced comparatively with second members of devices according to the prior art.
