I'm considering asking my ex-boyfriend to come over since my current boyfriend is out of town?

It's starting to get late and I don't like sleeping alone at night because it scares me! My ex-boyfriend elliot still cares about a lot, and he knows that I would be scared and he would totally come over and make me feel safe if i asked him to. I have friends over too so it's not lke it's just us, but after my friends leave later tonight we'l be alone. I'm not planning on cheating on my current boyfriend, I'm just gonna be sleeping in the same bed as my ex. We're not gonna touch eachother! But idk, is this a bad idea?