Hi all, I live in New Zealand but brought my son a duvet cover from NEXT as I really like their designs. As UK bedding is slightly different sizing to here I also had to order him a duvet inner from NEXT to fit the cover, so cannot easily return it. I’m not familiar with the Tog rating system as we just tend to call them winter/summer/all seasons weight but read online that 10.5 tog is closest to all seasons. The one that arrived seems quite thick, his room is between 17 degrees in winter and up to about 23/24 in middle of summer. Will this duvet be ok. He sleeps in short sleeve pjs year round. Anyone else’s kids sleep in a 10.5 tog year round or should I order a lighter one for summer