My 4 1/2 old DD is a really good nighttime sleeper, and generally very happy abs settled. We are, however struggling with day time naps. She won’t go for more the 30 mins at a time and gets hysterical if I try to put her down in cot or on bed. Tried white noise (which we use at night), dark room etc. She’ll nap in the car or pram if we are out but not at home. Is this normal at this age and generally get better? Looking for stories/advice!