My 12 week old will no longer nap on his own. I try to get him to sleep my rocking and ssshhing when I see him yawn/rub eyes which works in the morning and he’ll nap anywhere from 1-3 hours but only on me, I can’t lay him down or he’ll wake up. However later on in the day when I try the same thing he will scream and fight it until usually I give up because I feel like I’m just upsetting him and getting nowhere. He goes to sleep fine at night as feeds to sleep but wakes every 2.5-1.5 hours. I’ve tried a sling which used to work but doesn’t seem to now and he won’t really sleep in the pram. I feel like I spend all my time trying to prevent him from crying, he won’t tolerate being in any position for very long. Any advice greatly received.