Could you try and get her to sleep in a portacot downstairs or where ever you are....so she can still hear you etc..
my girl is doing that too she is 8 months and 2 weeks tho.
I have absolutely NO idea how to help you tho.
the only way i get mine to sleep during the day is going for a walk which is usually an hr walk lol!!
but she doesnt sleep the whole night tho unfortunately.
she only sleeps 8-9.30, 11-2, 2-5, 5-8 and stays awake from there so i wish i had your sleeps tho!!
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