Boys Hey Duggee Pyjama Set The Hey Duggee boys pyjamas have a cute, long sleeved top with Hey Duggee character images to front. The Hey Duggee set come with elasticated waist, snuggle fit bottoms for a comfortable fit. These Hey Duggee pjs are great for night-time, sleepovers or just play! Sizes: 12-18 Months, 18-24 Months, 2-3 Years, 3-4 Years 4-5 Years Material: Top front printed panel 100% Polyester, back and sleeves 100% Cotton. Bottoms 100% Cotton.