A lightly weighted chest pad mimics a resting hand — comforting for babies who need extra 'held' feeling to settle.
The gimmick that isn't: a gently weighted pad across the chest (safe, non-restrictive) that simulates a parent's hand and helps some hard-to-settle babies drift off. Adjustable wings and a two-way zip make it easy to use. It's more expensive and the weighting won't matter to every baby, but for a contact-nap-only infant it can buy you a real bedtime.