Is it possible & OK to follow A times/tiredness cues for naps but have a set BT, or should a set BT only be done with set naps? DS is 13mo, going through the 2-1 and spends 3 days a week at home, 2 at nursery & 2 with his grandma & does different routines in each of these places. I've been trying to adjust BT depending on his day but I'm finding it hard to constantly be guessing bedtime & wondered about setting a time of 7pm (6.30 if a really bad nap day or if only 1 nap that was short/finished before 1) Is it ok to do this without set naps?