Pregnant with twins and leg numbness at night at 8 weeks?!

Lyndsie

I am 8 weeks plus one day today with fraternal twins! (Hooray!) For the last few nights, I wake up to either one or both of my legs completely asleep/numb and I have to walk around around for a while to get any relief. Is this normal?! It wakes me out of a dead sleep! Terrible! Any recommendations?!