Or before you go to bed? I check on them on the video monitor but I only go in there if I need to adjust them. Usually LO1 is laying weird and uncovered, so I will go in and get her cozy again. LO2 is usually ok but I will go in if I want to "make sure she is breathing" now and then, especially if she hasn't moved in a while, or made a peep, it helps me sleep better if I check.