I have the odd nana nap if I can, but only if I can't keep my eye's open & DD's are at school & DS sleeping.
I might have one a month. I get 7 - 8 hours sleep most nights, but still find it hard to wake up every morning.
I go to bed around 10.30 - 11 (usually!) & I'm up around 7 - 7.30 most mornings for school. Sometimes earlier.

I feel guilty sleeping & most of the time I find it hard to sleep through the day.