I love this robot head print men's pajamas that I found at Kidrobot's website. It is 100% cotton and comes in sizes M, L and XL. It retails for US$95.00 and can be ordered directly from their site. Their robot logo is very Ultraman-looking and I love all references to vintage TV and nostalgia in general. I also like that he has this smirky expression giving it a kawaii edge and I am all for that. Wish list please!
Available at Kidrobot