this may sound funny but...maybe when your not long off putting her down her down, under her head put some clothes/pillow case that you've used/worn under her (and if they're warm it may help too- with out the sudden change in temp from body heat to cold cot/bed). that way she'll still smell you KWIM? i did/still do that with DS - he used to go down then wake up upset/screamy because he wasnt with myself or DH. it was my MCHN that suggested it. HTH.