Ahh! Baby coughing in her sleep

Courtney • E.V💗 N.A💙

So I’m pretty sick right now with a cold, my girl hasn’t shown symptoms except being a little extra fussy and both her naps today she coughed a few times during.. now I just laid her down to sleep and she’s coughed a few time already. think she’s congested and laying on her back is making her have to clear her airway? She sleeps in a pack n play.. should I roll some towels and put them under her mattress ?