I've always used sleep bags for my now 17month old DS which have been fantastic, just had a check of his various ones and he's due for the next size.
I'm wondering if it's worth introducing a toddler duvet instead as it's not just one sleep bag -I like to have varying togs depending on our awesome British weather! And they're not cheap!
But my DS is a wriggle bum at night and I'd worry that he'd wake frequently having kicked the duvet off or have tangled himself up in it. He sleeps in a cot bed.
What's the normal age for introducing a duvet and what have others experienced when doing it? Thanks!