Sleep and eating

So my son is almost 5 months he is usually good at sleeping his nights ish I always have him on a routine 7:00/7:30 we do his bath and give his bottle but he still keeps waking up I don’t understand am I doing something wrong ? 😔 is it because he is hungry also I’ve been noticing he is getting signs of teething could that be a part of that ? Also I think he is ready for soiled food /purée could that also be waking him up because he is more hungry ?