The biggest game changer for my quality of sleep was the Pluto Puff Pillow ($95), an extremely comfortable body pillow. I'd previously been using a pregnancy pillow but found it too stiff, especially when I would try to reposition in the middle of the night. In contract, the Puff is a dream to hug at night! At 12 pounds, 21' wide by 54' long, it provides just the right amount of side and leg support leading to less middle of the night aches (I was previously waking up every few hours with very sore hips.)