Freya is waking up nearly every hour again crying. She comes up on her knees or sits up but doesnt actually seem awake? she only started sleeping through the night last month so I feel a bit cheated that she is now getting me up several times a night again! she has just cut 4 top teeth, but last night I gave her nurofen and put her to bed wearing 2 teething anklets, but it made no difference. even giving her her dummy doesnt calm her down initially like it used to. Have to pick her up and soothe her. dont think its heat either as room is 22 degrees which it has been most nights for ages so only thing I can think of is sleep regression? does this sound like it and does it happen at 9mnths? and how long does it last?