No need for fruit or Juice or anything, sweet.
It is not dietarily needed.
It is NOT needed, at all.
Don't start the 'sweets' habit, already...
Yah, he sounds normal.
BUT... At this age, still feed (meaning his bottle) on-demand. For the 1st year of life.... breastmilk/Formula is a baby's Primary... source of nutrition. NOT solids and not other liquids....
DO NOT feed him juice.... it is a bad habit.
At this age, it is not necessary... that they 'eat'.... 3 times a day, like adults. This is only an introduction... to 'eating' and solids, for the first year.
3 meals, 3 times a day... is something that is gradually, worked up to.
At that age... both my kids only ate Solids, once a day. And I breastfed on-demand 24/7..... day and night.
Yes... a baby this age, STILL wakes at night, to feed. 6 months old, is also a time of growth-spurts... AND perhaps teething.
So, they do get hungrier and growth-spurt periods. It is normal.
And they wake.
My kids as babies woke like yours. Normal.
A good book is 'What To Expect The First Year."