9 month old wakes nearly every hour at night

[Megs28]

Hi ladies please help!
My 9 month old just doesn't sleep at night she isn't waking for any particular reason, I'm sure we have tried everything to keep her asleep, we are at our wits end.
For example last night she went to bed at 6.30 which is her normal bedtime she stirred at 9 so I put her dummy in, she stirred again at 9.30 and again at 10 so at 10 I gave her a bottle as she didn't drink much of her one at bedtime, she drank half and slept til 12.30
Then stirred again at 1.30, 2.30, 4, then was wide awake at 5.30 so tried her with a bottle hoping she would have some and go back to sleep but no she just whinged til 6.30. We have tried white noise cd, radio, she has a heater on wearing low it comes on a timer so she can't be cold, we change her nappy half way through the night so she's not wet, we don't pick her up when she wakes as she will think it's play time. Just don't know wat else to try.
Please help!!!!

Could she be too hot?

When she stirs, could you try leaving her to settle herself back to sleep?

Is she in your room or her own room?

Does she cry when she wakes up? Can you just leave her? (If she's not crying). One school of thought is to not take her out of the cot, just talk to her and reassure her to go back to sleep.

Sorry just realised you wrote that you don't pick her up. Well if nothing is wrong you could consider some form of ferberising although I appreciate many parents don't like those methods. Whatever you choose to do I wish you the best.

We have a 2.5 year old too so we don't leave her for too long as we are scared of waking him. She won't settle herself she just seems to wake whinge abit then start to cry the longer we leave her but if we go in and offer her the bottle she doesn't want it, so we give her her dummy that keeps her quiet for maybe 15mins then she might start again we just don't understand wat she's waking for so frequently.
She sleeps in a onsie and has a light quilt on so I don't think she's hot

My 8 month old daughter is the same, and has been for months now. If she sleeps longer than an hour or so at a time its a newsworthy event. Its desperate. I have no answers but lots of sympathy

Is she crying when the dummy falls out? Could be a sleep association?

She has never been a baby that loves her dummy she only has it occasionally so I really don't think she's waking for a dummy