Safety tested to British Standards,1.0 tog sleeping bag cum jumpsuit is great for night time sleeping and as a jumpsuit for daytime. 1.0 tog sleeping bags are ideal for room temperatures of 18-24 degrees and are the safest way for baby to sleep. This patented design features a two way zip so you have a sleeping bag for night times and a jumpsuit for mornings and daytime. Simply change baby's nappy in a morning and re-zip straight into the jumpsuit format for use in highchairs, buggys & car seats. This super soft sleeping bag is made from a cotton-rich terry fabric with a small poly element to prevent shrinkage when washed.