Left: TESS light curve of HD 135160 from sector 12 (top) and 65 (bottom) with the 120 s exposure times using SAP flux. Primary (green) and secondary eclipses (red) of binary B with a 5${}^{\mathrm{d}}.$853 period and heartbeat effect of binary A (blue) with a 8${}^{\mathrm{d}}.$234 period are shown. Primary eclipse at RJD 58644.71 and secondary eclipse at RJD 60069.69 of binary B is reduced by heartbeat of binary A. Right: Zoomed plots of visible oscillations with a period of 0${}^{\mathrm{d}}.$071. This small variability is not always clearly visible due to changing signal noise. LCs are normalized per sector to their median values.