A traditional cold-weather requisite, the Stewart Plaid Thermal-Top Toddler Pajamas are a quintessential winter season must-have. The woven, double-brushed premium flannel pants promise impeccable softness, and because it's yarn-dyed, the colors are guaranteed to last. Paired with an equally soft, solid red thermal top, these are the kind of pajamas that they'll want to sleep in every night.