Reddit mentions of SensaCalm Sensory Weighted Lap Pad, Weighted Calm Blanket Dazzling Blue and Scuba Blue, 2 lbs 12 x 18 inches

Have you heard of the idea of love languages? If his primary love language is touch, I wonder if he is just seeking to meet his need for that. I mean, it's still not ok for him to be ignoring other's personal boundaries. However it might be worth experimenting to see if you are give him a lot of extra hugs at home, if his attempts at hugging at school decrease. Like maybe let his teacher know "This week we are going to try to increase physical attention at home, please let us know if you see any difference at school." The other thing that might be worth a shot is a weighted blanket to sleep with, or even a weighted lap pad for school. It could be that he's seeking that deep pressure through hugs? So if he has some of that sensory input through the mats or blanket it might help. Something like this: https://www.amazon.com/SensaCalm-Sensory-Weighted-Processing-Disorder/dp/B01N06L35G/ref=sr_1_13?ie=UTF8&qid=1541995473&sr=8-13&keywords=sensacalm The mats are less expensive than blankets. IF you want to try something, I'd try a mat first. If that helps, watch zulily for weighted blankets. That's where I got mine for my childcare and they were MUCH cheaper than anywhere else I've found them. They have a few on there now, but they aren't a brand I've tried before. I like the sensacalm ones. They have a better design than a bigger one I bought for myself.