Working mums

I have an 8 month old son and I will be returning to work in two weeks time.

My son use to be a great sleeper sleeping through the night but since July he has changed. He will just wake up. He has a dummy and he will wake up because it has come out so I'm up about 5-10 times putting it back in. Other times he just wakes up chatting to himself but then will moan. Other times he will just cry even bough the dummy is in. It ends up me having to give him a bottle or just taking him to calm him.

I'm worried that when I go back to work I'm gonna be so tired due to lack of sleep and also my son will not be getting enough.

I work with children too.

My son dont have long naps in the day so by bedtime he is very tired. He has a great bedtime routine and goes bed the same time every night. I take him out everyday and he gets loads of play and eats well so u would think that would ware him down.

At one strange the doctor gave me something to help him sleep which worked and they said hopefully it would train him back into a sleep routine at night but obviously aint.

Anyone else in the same situation or has been?