Abstract: A foldable and portable cot apparatus for assisting inflight sleeping is disclosed. The cot apparatus may include a frame structure, a flexible platform and two supporting legs. In an assembled and in-use orientation, the frame may be supported by the legs, allowing the positioning of the frame structure and platform over the arms of an airplane seat. A baby can be laid down over the platform enclosed by the frame for resting or sleeping. Supporting legs and side rails can be detached from the frame structure in order to fold and roll up the cot apparatus into a fully-folded orientation for carry and/or storage. The length of supporting legs may be adjusted using suitable telescopic mechanisms for fitting airplane seats of different dimensions. The cot apparatus may be also configured in a unibody structure with no detachable components or parts, where side rails may include a folding mechanism that may allow to fold or unfold the cot apparatus as required.