My DS2 was LSN (although I didn't realise at the time) & because of the needs of DS1, we naturally fell to a catnap, long nap, catnap routine & he did a long (sometimes 3hour) nap in the middle of the day & so he only did catnaps at either side, I found that we actually kept up the catnaps until almost 9mo to work out the day for the whole family, as it was much easier for DS2 to have a 20min cat nap in the stroller than it was to be home.