I'm 37 weeks tomorrow and am finding it difficult to sleep (obviously heat not helping). I read that the best side to sleep on is your left side, but every night over the last week I've woken up as my left leg (especially by hip) has gone dead. Does it matter if you sleep on your right side? I can sleep for a good few hours on either side and don't toss and turn so can't really say 'oh it'll be ok for 20 or 30 mins'.