Old Navy Long-Sleeve Thermal Pajama Tee 2-Pack An Old Navy Long-Sleeve Thermal Pajama Tee 2-Pack ($25, originally $30) is a great deal if this is your favourite shirt to layer or lounge in when it's cold (there are single options as well). Image Source: oldnavy.gap.com Old Navy Long-Sleeve Thermal Pajama Tee 2-Pack $25 from oldnavy.gap.com Buy Now