Matt doesn't really have voyeuristic tendencies... Cassie DID call him about moving the sofa, and before the second Cassie overlapped, she was sleeping when he tried to come by.
TRANSCRIPTION COURTESY OF JOSEPH HOUK - (CW) "Just a little more to the left... easy..." (FCW) "Aaaand... THERE!" (CW) "Phew! That was a chore. But I... we... did it! Now all I gotta do is grab the timepiece and go back to 3:30, right?" (FCW) "Right! Okay. Are we missing anything?" (off-screen) "WHOLE... LEE... SHIT..." (CW) "Obviously I missed Matt dropping by while I was still asleep..."