Personalized Funny I'm Not Always Sarcastic Sometimes I'm Sleeping T-Shirt. If sarcasm is your second language but you also need your beauty sleep, this design is made for you! A funny and relatable design that perfectly sums up the duality of being sarcastic and enjoying a good nap. Whether you're known for your quick wit or just need your sleep, this design has you covered with humor. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.