Bnip marks spencer age 9 12 months of 5 long sleeved sleep suits brand new pack of five long sleeve sleep suits pack consists of one plain grey one plain white one grey and white striped one grey with white stars and one white with grey stars these envelope necks are for easy dressing and flat seams for comfort size 9 12 months measurement guide for this size is 76cm 30 based on height and 10kg 22lb based on your babys weight also look at our co ordinating baby body suits t