Nursing while sleeping

Well, I tried nursing Caterpillar lying down. Neither one
of us were very satisfied with it, but I'm not sure how much
of that was novelty, and how much was inherent to the setup.
Do any of these things change / get better / go away with
practice?

-- If she only eats on one side, she wakes up hungry 2
hours later, rather than the 3-4 she'll go after both sides

-- She slurps herself on if left to her own devices, which
results in a less good latch

-- If I keep my arm behind her head to help her latch, she's
at the wrong height, and I have to hold myself up with the
other hand

-- She flails wildly for the 30-60 minutes it takes her to
wake up and really latch on. So I get mouthed and hit and
shoved and scratched. If I sit up and pick her up, she
wakes up enough to eat.

-- I feel the nursing enough that I can't sleep through it,
and lying down is less comfortable (but more restful) than
sitting up

-- Switching sides is so disruptive to both of us that it
hardly seems worth it

Phoebe