4 months old fell from bed

My baby had fallen twice from our queen size bed. The first time (she was almost 6months), i found her face up, crying. We went to the A&E the following day cause her teachers mentioned she was very sleepy the entire day. The second time (at 8months), she fell face down. Rushed to A&E cause there was a bump on forehead. Luckily for both occasions, doctor said there was nothing. As long she’s feeding well and with frequent diaper change. One of them mentioned that usually if they fall from a height that is below their own height, all should be fine. Nonetheless, the doctor also mentioned that we should not underestimate these babies. They are quicker than we think. Advised to not leave them on an open bed. We got the bed fence after the unfortunate incidents but still keep a close eye on baby when inside on her own. If in doubt, get him checked.. to get a peace of mind. Can use CDA at A&E too.