The Baby Works; Pregnancy Wedge gives you the versatility you need to feel comfortable while sleeping. The angled wedge can be placed under growing bellies for proper spinal alignment and comfortable side-sleeping. As part of Baby Works, the orthopaedic foam is more supportive than traditional wedges and comes with a hypoallergenic fitted cover, made using rayon from bamboo fibres, which is soft and gentle, keeping the Pregnancy Wedge cool and comfortable. Orthopaedic foam provides maximum comfort & is more supportive than traditional wedges. Perfect support for side sleeping during pregnancy & beyond. Hypoallergenic fitted cover made using rayon from bamboo fibres. Use between your legs for aligning hips and spine. Elevate your feet while resting or feeding. Batteries not included. 1 pregnancy wedge.