I'm trying to set up my angel care movement monitor in my Moses basket something I was told was possible however as the mattress is quite thin the mat seems to create quite a bump and I'm not sure it will be comfortable for baby. I've put a board under the mat as they suggest which creates even more of a bump. Has anyone had the same problem or do you think it will be ok. I'd rather not get a new mattress as the one that's in it is fine and looks comfortable without the mat there. Does anyone have any ideas?