As baby grows, it becomes more difficult for mom to get the rest she needs. The dense foam of the Pregnancy Sleep Wedge cushion by Boppy, supplies support when positioned under the belly. Its lightweight portability makes it easy for mom-to-be to move it about during sleep. A lavish 360-thread count cotton slipcover makes for easy washing. Luxurious soft pima cotton slipcover. Cover removes for easy washing. Can be used for a back support. Takes up less room than full-size body pillows.