Personalized Sleep Disorder Specialist SDS Women's Plus Size V-Neck. Sleep Disorder Specialist Women's Plus Size V-Neck - White has worlds best logo on this thank you gift idea for a SDS. So comfortable you'll want one in every color! These versatile v-neck t-shirts are great to wear to the office or at a weekend BBQ with friends. Available in a wide range of colors to compliment any wardrobe, these shirts are softly shaped to complement a plus sized woman's curves.