4.5month now not sleeping through night

[jamies mummy]

hi there - i am after some help and advice pls on my DS sleep problem.

He is on 3hour easy at the moment, he goes to bed at 7pm and would sleep through the night, however for the past few weeks he has been waking up just before his dreamfeed at 10/10.30pm (so we have been giving it to him a little earlier before he wakes which is all ok) however he has been waking up a few times in the night especially at 3am - i have been giving him a bottle of feed at this time and he can take anything from just 1oz to 3oz !

any ideas of what is going on ?
is he being feed too much (5 bottle (6incl. dreamfeed) each 5oz ?
is weaning playing a part in keeping him awake ?
is it that he should now be on a 4hour easy ?

thanx
jx.

[jamies mummy]

sorry this is his routine:- weighs 14lb

wakes 7.15-7.30am
E 8am
A
S 9am -10am

E 11am bottle and (3-4 teaspoons of apple and pear)
A
S 1pm-1.30pm

E 2pm bottle and ( 3-4 teaspoons of apple and pear) sometimes doesnt want his bottle at this time just the food
A
S 3.30-4pm

E 5pm
A
S 5.30-6pm (needs this nap or overtired)

6/6.30 bath time

E 7pm bottle and bed

DF 10pm

thanx