Nikki is an absolute rockstar! Nikki helped us for about 3 months. I noticed a positive difference with Rogan every single day after Nikki had spent the night. He was calm and super happy, and stuck to his schedule the next day! Nikki always came on time (or early) and stayed until she was sure he was settled. I was originally extremely nervous to have someone help us sleep train Rogan. Nikki's obvious care and love eased every worry, and I actually slept through the night. I can't say enough good things!!