The Summer Infant Rest Assured® Sleeper is designed with baby's safety and comfort in mind. A sturdy metal frame protects baby from parents rolling over. The mesh sides help keep your baby at a comfortable temperature and allows parents to easily see their sleeping baby. The included pad is removable and machine washable. To help soothe baby to sleep, the Summer Infant Rest Assured® Sleeper includes an electronics unit with 4 melodies, 2 nature sounds, a womb sound and two speed vibration. Loaded with parent conveniences like a nightlight with 3 settings and a 5-minute timer, and pocket for holding diapers, pacifiers and other necessities, the Summer Infant Rest Assured® Sleeper provides a cozy and comfortable environment for co-sleeping with baby. The Rest Assured® Sleeper, which measures 29.5" x 13", also folds compactly for travel or storage.