t rare to find people who use more than one sleep aid
together, like
Ambien and Benadryl. That can produce diasastrous results. Also, too many people are Rx'd a sleep aid for far too long, which actually worsens insomnia to the max. Sleep aids are designed to be used for short intervals.
I would recommend, as a safeguard, that the FDA pushed for warnings placed on OTC sleep aids, such as Benadryl, Z-Quil, and the like, not to mix meds.