The Baby Works™ Pregnancy Wedge gives you the versatility you need to feel comfortable while sleeping. The heart shaped wedge can be placed under growing bellies for proper spinal alignment and comfortable side-sleeping. As part of Baby Works™, the orthopedic foam is more supportive than traditional wedges and comes with a hypoallergenic fitted cover, made using rayon from bamboo fibers, which is soft and gentle, keeping the Pregnancy Wedge cool and comfortable.