Hindi naman talaga ang Nasatapp ang nakakatulog, pero sometimes ang congestion relief mismo yung nagpapagaan ng breathing nila kaya natutulog sila ng mas mahimbing, kaya parang sleepy effect lang yung nakikita natin! Honestly, a few of us moms noticed na kapag na-relieve ang congestion, mas comfortable sila at mas matulog, pero that's more comfort than the med itself. If you're worried about any unusual drowsiness or side effects though, better to message the pedia kasi every baby reacts differently, and mas safe na sigurado lang kayo. Hang in there, mama, colds are no fun!