My son had a horrible nightmare last night

Last night, my son (13), woke me up sobbing and trembling. He told me that he had a nightmare, like a really really bad one. He asked if he could sleep with me, I of corse let him. I’ve literally never been that physically close to someone. I just held him as tight as I possibly could. This morning, he wouldn’t talk about it at all. He absolutely refuses to talk about it.He uses to tell his mom everything, he hasn’t been able to since she passed. How can I get him know he can talk to me? via /r/Parenting https://ift.tt/2yrV1Dn