Should I Suggest It And If So How?

My son recently started therapy to help cope with his sexual assault/abuse. Small update, my ex's gf son admitted to doing it. It may be him wanting to avoid a long trial but he confessed and that took some weight off ny shoulders. Anyway, my son is obviously having issues because he's trying to get through this. He has outbursts, he has panick attacks, but issue is the bedwetting. I've walked onto his room to him sleeping on the floor because he woke up to a wet bed and decided to sleep on the floor. I talked to his therapist about it and she said it could last for a while. He endured horrible trauma. She said we could try night time underwear if he's up to that, but not to force it. So do you parents think I should suggest it and if so how should I go about suggesting it. It's affecting his sleep and he just seems to be in so much emotional pain. Plz no judgment. I'm not wanting to suggest it to embarrass him. I just know it's affecting his sleep and with everything going on he at the very least should get a good night's sleep.