The SleepBelt is a premium quality product designed for the 4th trimester and beyond. - Quick & easy to get on - Has unique 4-way stretch, which naturally mimics the womb - Allows baby to be in their most comfortable position: legs straight, tucked, or froggy style - Comfortable for the wearer: no knots, clips or buckles to dig in, no strain on the neck back or shoulders - Unisex & adjustable - Versatile: skin-to-skin (0-3 months), forward facing on lap (when baby has full neck/head control and can sit with your support), gentle chair restraint (when baby can sit unassisted - do not leave baby unattended.)