Just finished a rough first draft protype for an insultex peapod. Sides can be raised from inside the hammock with an overhead set of draw cords attached to the ridge line with a couple of cord locks. Can adjust UQ air gap with same set of cords. Used it at 20f in conjunction with a half down UQ. Two layers of insultex. Used a REA 40f 650 down bag for a TQ. Had on a face mask/UA cap, fleece hoodie, sweat pants and wool soxes. Will make it modular with removable layers. This was made without the aid of a sowing machine. All hand stitching. Good way to spend quality time while watching the idiot box.