We had the exact same thoughts as you. We did the same thing with Mitchell initally.

However we found that he did settle better when he was wrapped, irrespective of whether it was day or night.

I agree with the other comments. Our little man is slowly working out day from night and we haven't really done anything different. In fact, we are now very consistent with our sleeping locations and routines and have found that easier as he knows it's sleep time. We thought it was a little too much for Mitchell to understand the difference between day sleeps and night sleeps as that's two things to remember!