Curtain rail arrangement with a curtain rail body extending in a main longitudinal extension direction (X) and comprising a glider channel which is designed for receiving curtain gliders, wherein the curtain rail arrangement can be connected to a holder for attaching the curtain rail arrangement to a wall or ceiling, and has here an upper side (O) oriented towards the ceiling, and a lower side (U) oriented towards the floor, wherein the curtain rail arrangement has two counter bearing regions which are or can be connected to the curtain rail body in a manner secured against displacement, wherein the curtain rail arrangement comprises a tension unit which has at least one tension means which is mounted in rotatable manner in at least one of the counter bearing regions substantially parallel to the main longitudinal extension direction (X) and which is connected in rotatable manner to a receiving portion which is arranged between the counter bearing regions or in an opposing counter bearing region and is connected or coupled directly or indirectly to a portion of the curtain rail body and forms a part of the tension unit , wherein the at least one tension means has, in particular in the region of the end side of the associated counter bearing region , a rotatably mounted rotation element which is supported on a support face arranged on the counter bearing region and whose rotation causes deflection of the curtain rail body , characterised in that the axis of rotation (A) of the at least one tension means has a shorter distance from the upper side (O) of the curtain rail body than from the lower side (U) thereof, and that a middle portion is arranged between the counter bearing regions wherein the middle portion is designed for strengthening the curtain rail body and is connected thereto. wherein the curtain rail arrangement can be connected to a holder for attaching the curtain rail arrangement to a wall or ceiling, and has here an upper side (O) oriented towards the ceiling, and a lower side (U) oriented towards the floor, wherein the curtain rail arrangement has two counter bearing regions which are or can be connected to the curtain rail body in a manner secured against displacement, wherein the curtain rail arrangement comprises a tension unit which has at least one tension means which is mounted in rotatable manner in at least one of the counter bearing regions substantially parallel to the main longitudinal extension direction (X) and which is connected in rotatable manner to a receiving portion which is arranged between the counter bearing regions or in an opposing counter bearing region and is connected or coupled directly or indirectly to a portion of the curtain rail body and forms a part of the tension unit , wherein the at least one tension means has, in particular in the region of the end side of the associated counter bearing region , a rotatably mounted rotation element which is supported on a support face arranged on the counter bearing region and whose rotation causes deflection of the curtain rail body , characterised in that the axis of rotation (A) of the at least one tension means has a shorter distance from the upper side (O) of the curtain rail body than from the lower side (U) thereof, and that a middle portion is arranged between the counter bearing regions wherein the middle portion is designed for strengthening the curtain rail body and is connected thereto. <EOS>